Best Emission System in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Emission System

DynoMax 39315 Stainless Steel Exhaust System
#TOP1
Dynomax 39315 Stainless Steel Exhaust System
9.3
PM SCORE
Spectre Performance 9549 3.5" Aluminum Intake Tube
#TOP2
Spectre Performance 9549 3.5" Aluminum Intake Tube
7.3
PM SCORE
K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 7HP: Compatible with 3.8L, V6, 1999-2004 FORD (Mustang), 57-2532
#TOP3
K&N Cold Air Intake Kit: Increase Acceleration &
7.2
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Emission System of 2026

Market Overview
Emission System Reviewed
  • Reviews Analyzed: 530 Items
  • PM Avg. Rating: 4.5 / 10
27 Products Evaluated
  • Highest Price: $415.34
  • Lowest Price: $2.96
  • Avg. Price: $275.42

Dynomax 39315 Stainless Steel Exhaust System

DYNOMAX
39315
0.00 X 0.00 X 0.00 Inches
14.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

COMPATIBILITY -- Designed for 1998-2011 Ford Ranger trucks; 126-in. wheelbases; see product information for compatibility and engine spec

PERFORMANCE UPGRADE -- Enhance your vehicle’s exhaust system with this kit that can give a 15HP and 16-Lb. Ft. torque improvement

COMPLETE SOLUTION -- Includes DynoMax Ultra Flo SS polished muffler, pipes, gasket, hanger and all necessary clamps

IMPROVED FLOW CAPACITY -- 2.5-in. Stainless-steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power

PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance while maintaining a deep performance tone

SUPERIOR PERFORMANCE -- Straight-through muffler design ensures unrestricted exhaust flow and reduces back pressure

SPECS -- Welded 3-in. outlet single wall, buffed and polished stainless-steel slant cut tips

BUY WITH CONFIDENCE -- Comes with DynoMax’s limited lifetime warranty and exclusive 90-Day Performance & Sound Guarantee

#TOP2

Spectre Performance 9549 3.5" Aluminum Intake Tube

SPECTRE
9549
0.00 X 0.00 X 0.00 Inches
0.55 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Many applications have a polished aluminum finish

Several applications are mandrel bent

Tube configurations include straight, 30, 35, 40, 45, 60, 75, and 90 degree bends and U shaped

Grade 6063 polished aluminum

#TOP3

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 7Hp: Compatible With 3.8L, V6, 1999-2004 Ford (Mustang), 57-2532

K&N
57-2532
20.00 X 12.00 X 12.00 Inches
9.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 7HP and up to 7 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP4

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 7Hp: Compatible With 1.6L, L4, 2014-2015 Ford (Fiesta St), 57-2587

K&N
57-2587
0.00 X 0.00 X 0.00 Inches
7.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 7HP and up to 10 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP5

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 16Hp: Compatible With 3.9L, V8, 2003-2005 Ford (Thunderbird), 57-2562

K&N
57-2562
20.25 X 12.25 X 12.25 Inches
8.36 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 16HP and up to 14 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP6

K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed To Increase Horsepower Up To 25Hp: Compatible With 5.2L, V8, 1993-1998 Jeep (Grand Cherokee), 57-1506-2

K&N
57-1506-2
35.50 X 13.25 X 10.50 Inches
11.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 25HP and up to 30 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP7

K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed To Increase Horsepower Up To 7Hp: Compatible With 4.0L, L6, 1991-1995 Jeep (Cherokee), 57-1519

K&N
57-1519
20.00 X 12.00 X 12.00 Inches
7.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 7HP and up to 8 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP8

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 17Hp: Compatible With 4.6L, V8, 1999-2002 Ford Crown Victoria, 57-2544

K&N
57-2544
22.00 X 14.00 X 12.00 Inches
9.59 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 17HP and up to 18 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP9

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 18Hp: Compatible With 5.7L, V8, 1997-2000 Chevrolet (Corvette), 57-3020

K&N
57-3020
18.00 X 18.00 X 12.00 Inches
8.92 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 18HP and up to 18 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

Performance Stainless Steel Ss Ss409 3" Cat Back Catback Exhaust Muffler Kit System Polished Tip Compatible With 2005-2020 Nissan Frontier 4.0L V6 Pick Truck, Extended Cab & Crew Cab Short Bed Only

MVP AUTO PARTS
NPY7TVWP976MFFQT34WVAJMC333CA6MW2GVBPBED
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MVP Auto Parts 9.71

Features

Retain All OEM Catalytic Converters. Does NOT Modify Any Vehicle Emission Component. Fully Emission Legal Exhaust System

Fit: 2005-2020 Nissan Frontier 4.0L V6, Extended Cab & Crew Cab Short 5' Bed Only. Performance 3" Cat Back Exhaust System (Exclude 2020-2021+ 3.8L)

Moderate Exterior Sound & Low Interior Sound. Dual 2.5" Inlet Muffler Into Single 3" Outlet. Polished Tip Included

Hardware(s) Included Exactly As Shown. Improve Sound, HP/TQ & Throttle Response. TIG Weld & Mandrel-Bent For Maximum Performance

Top Quality SS409 Stainless Steel. Affordable Pricing. Instruction Not Included. Professional Installation Strongly Recommended

Hps Performance (Htsvh35-Red) 3.5Mm Red High Temperature Silicone Vacuum Hose, 3Mm Wall Thickness, 60 Psi Maximum Pressure, 1' Length

HPS
HTSVH35-RED
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Temperature Range: - 65 degree Fahrenheit to + 350 degree Fahrenheit (177 degree Celsius)

Made of high temperature premium grade silicone rubber

Heavy wall design gives it the ability to handle extreme pressure; Ultra flexible and Excellent tensile strength

Hose Inside Diameter: 3.5 millimeter; Color: Red

Silicone hose is compatible with water or anti-freeze such as coolant; Silicone hose is not compatible with fuel or oil

#TOP12

K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed To Increase Horsepower Up To 9Hp: Compatible With 4.0L, V6, 1997-2001 Ford (Explorer Sport Trac, Explorer), 57-2528

K&N
57-2528
20.00 X 12.00 X 12.00 Inches
8.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Performance Guarantee 9.65

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 9HP and up to 9 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP13

K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed To Increase Horsepower Up To 6Hp: Compatible With 4.0L, V6, 1995-1997 Ford (Explorer), 57-2536

K&N
57-2536
22.00 X 14.00 X 12.00 Inches
9.60 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 6HP and up to 7 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP14

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 19Hp: Compatible With 5.7L, V8, 2004-2005 Cadillac (Cts-V), 57-3054

K&N
57-3054
20.25 X 12.25 X 12.25 Inches
9.49 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 19HP and up to 20 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP15

Muffler Resonator Exhaust System Kit Fits: 1997-1999 Nissan Maxima 3.0L Federal Emission

NORTHEASTERN EXHAUST
56000 + 21182
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UPSW Auto Parts 9.57

Features

Brand New replacement exhaust parts

Direct Bolt on, No cutting or welding required

One (1) New Replacement Direct Fit 2 piece Resonator Pipe with connector, One (1) New Replacement Direct Fit Muffler

Free gaskets, and clamp included

#TOP16

K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed To Increase Horsepower Up To 5Hp: Compatible With 3.9L, V6, 1994-2001 Dodge (Ram 1500), 57-1527-1

K&N
57-1527-1
36.00 X 13.00 X 10.00 Inches
14.98 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 5HP and up to 7 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP17

K&N Cold Air Intake Kit: High Performance, Guaranteed To Increase Horsepower: 50-State Legal: Fits 1990-1993 Mazda (Miata)57-5001

K&N
57-5001
9.00 X 9.00 X 9.00 Inches
5.39 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.

GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube

BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.

IMPROVED ENGINE SOUND: Hear the power under the hood.

WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants

EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles

EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.

DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required

HIGH QUALITY: Made in America.

RACETRACK APPROVED: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.

#TOP18

K&N Universal Air Intake System: High Performance, Premium, Guarentted To Increase Horespower: Filter Height: 4.875 In, Shape: Round Reverse Tapered, Rc-5052Ar

K&N
RC-5052AR
10.00 X 10.00 X 10.00 Inches
2.29 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Performance Guarantee 9.65

Features

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%.

EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.

SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.

ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.

WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.

LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions.

HIGH QUALITY: Made in America.

RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.

NO-HASSLE WARRANTY: 1-Year Limited Warranty

#TOP19

K&N Cold Air Intake Kit: High Performance, Guaranteed To Increase Horsepower: 50-State Legal: Fits 1991-1996 Saturn (Sc2, Sl2, Sw2, Sc)57-3012

K&N
57-3012
9.00 X 9.00 X 9.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.

GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube

BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.

IMPROVED ENGINE SOUND: Hear the power under the hood.

WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants

EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles

EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.

DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required

HIGH QUALITY: Made in America.

#TOP20

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 12Hp: Compatible With 2.0L, L4, 2005 Ford (Focus), 57-2559

K&N
57-2559
22.25 X 14.25 X 12.50 Inches
0.43 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 12HP and up to 11 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP21

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 7Hp: Compatible With 1.8L/2.0, L4, 2005-2015 Mazda (Mx-5 Iii), 57-0656

K&N
57-0656
9.00 X 9.00 X 9.00 Inches
2.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Performance Guarantee 9.65

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 7HP and up to 8 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

Performance Stainless Steel Ss409 Single Side Exit Cat Back Exhaust Muffler System With Polished Tip Compatible With 07-20 Jeep Wrangler Jk 2Dr/4Dr 3.6L & 3.8L

MVP AUTO PARTS
UUF5N69UNFAB5XURZSBAEVBZQ6QB7VS48BZT2YMS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MVP Auto Parts 9.71

Features

Retain All OEM Catalytic Converters. Does NOT Modify Any Vehicle Emission Component. Fully Emission Legal Exhaust System

Fit: 2007-2020 Jeep Wrangler JK 2DR & 4DR, 3.6L or 3.8L Engine. **2-Door Model Requires Trimming The Inlet Of The Over-Axle Pipe **

High Performance Cat Back Exhaust System With 3" Polished Exhaust Tip. Moderate Exterior Sound Level & Low Interior Sound

Hardware(s) Included Exactly As Shown. Improve Sound, HP/TQ & Throttle Response. TIG Weld & Mandrel-Bent For Maximum Performance

Top Quality SS409 Stainless Steel. Affordable Pricing. Instruction Not Included. Professional Installation Strongly Recommended

#TOP23

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 12Hp: Compatible With 2.4L, L4, 2006-2008 Chrysler (Pt Cruiser), 57-1551

K&N
57-1551
20.25 X 12.25 X 12.25 Inches
7.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 12HP and up to 13 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP24

K&N Cold Air Intake Kit: High Performance, Guaranteed To Increase Horsepower: Fits 2014-2020 Chevy/Gmc/Cadillac (Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon, Yukon Denali, Escalade) 77-3082Kp

K&N
77-3082KP
24.02 X 15.35 X 14.57 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 10HP and up to 10.48 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ALUMINUM INTAKE TUBE & CUSTOM HEAT SHIELD: For a more custom look under the hood, a mandrel-bent and mirror finish aluminum intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

#TOP25

Afe Tm-1018P-D Takeda Polished Stage-2 Si Pro Dry S Intake System For Honda Civic Si L4-2.4L

AFE POWER
TM-1018P-D
0.00 X 0.00 X 0.00 Inches
5.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autocare Depot 9.60

Features

Sealed

Requires no cutting

Polished intake tube

Filter to air box interface

3 layer synthetic cotton gauze media

#TOP26

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed To Increase Horsepower Up To 7Hp: Compatible With 1.4L, L4, 2013-2014 Dodge Dart, 1.4L L4, 69-2548Ts

K&N
69-2548TS
0.00 X 0.00 X 0.00 Inches
8.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine an estimated increase up to 7HP and up to 9 ft.lbs. of Torque

HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed

DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system

FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions

DURABLE ALUMINUM INTAKE TUBE & CUSTOM HEAT SHIELD: For a more custom look under the hood, a mandrel-bent and powder coated aluminum intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay

PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools

MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support

Performance Stainless Steel Ss409 Dual 3" Cat Back Exhaust Muffler System Kit With Polished Tips Compatible With 2006-2008 Dodge Ram 1500 5.7L V8 Hemi Gas Pickup Truck

MVP AUTO PARTS
QJXSQH4QYSZ5GN936RXJ2QH6F59C43SP7J2WZNS6
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MVP Auto Parts 9.71

Features

Retain All OEM Catalytic Converters & Does NOT Modify Any Vehicle Emission Component. Street Legal & Emission Legal Cat Back Exhaust System

Fit: 2006-2008 Dodge Ram 1500 5.7L V8 Hemi 2WD/4WD. Fit All Wheelbases/Bed-Length. Excludes Mega Cab Model

Tube Diameter: 3.00" Muffler Inlet Into Dual 2.50" Tailpipes Moderate Exterior Sound Level & Low Interior Sound

Hardware(s) Included Exactly As Shown. Improve Sound, Horsepower & Torque. TIG Weld & Mandrel-Bent For Maximum Performance

Top Quality SS409 Stainless Steel. Affordable Pricing. Instruction Not Included. Professional Installation Strongly Recommended

Top 10 emission system Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
K&N 19
Mvp Auto Parts 3
Afe Power 1
Dynomax 1
Hps 1
Northeastern Exhaust 1
Spectre 1

Top 10 emission system Brands Pie Chart


We've carried out a comprehensive analysis of 530 reviews on emission system, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select emission system priced around $275.42, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 27 emission system for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right systems Products based on their needs, saving them considerable time when choosing which emission system to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.