Best Air Intake Breathers in 2026
- Products Evaluated
- 14
- Reviews Analyzed
- 1,514
- Brands Ranked
- 7
Whether you are fine-tuning a high-performance racing engine, maintaining a vintage motorcycle, or optimizing an industrial generator, the air intake breather is a critical component in your machine's respiratory system. Unlike a standard air filter that sits in a closed box, a breather is often exposed to the elements, tasked with allowing crankcase pressure to vent while simultaneously preventing contaminants from entering the sensitive internal workings of your engine. Selecting the wrong breather can lead to oil fouling, decreased horsepower, or catastrophic engine wear due to dust ingestion. This guide will help you navigate the technical nuances of filtration media, housing materials, and pressure management to ensure your engine breathes clean, controlled air.
Our Top Picks for Air Intake Breathers
The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.
Quick Filter
Showing 16 of 16ESUPPORT Universal 12mm Mini Blue Cone Cold Air Intake Filter Turbo Vent Breather Car
- Mounting Hole Dia : 12mm/ 0.47"
- Universal Fittings For Car Air Intake Piping
- Increase engine power and torque outpout
- Boost engine horse power significantly
- Contructed with high quality material to ensure filtration efficiency
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| E Support | 9.79 | Yes | Yes | Yes |
The ESUPPORT Mini Blue Cone Filter is a budget-friendly essential for any enthusiast looking to optimize their engine's breathing. This compact component is designed to fit universal car air intake piping, making it a versatile addition to various engine setups. By utilizing high-quality filtration materials, it aims to boost horsepower and torque output significantly while maintaining high filtration efficiency. The 12mm mounting hole diameter ensures a precise fit for specific turbo vent or breather applications. It is a straightforward, cost-effective way to improve airflow and potentially squeeze more performance out of your vehicle without a massive overhaul of your existing intake system.
Breather Pink │ Natural Breathing Exerciser Trainer for Drug-Free Respiratory Therapy │ Breathe Easier with Stronger Lungs │ Guided Mobile Training Ap...
- NOW IN PINK: INDEPENDENT INHALING AND EXHALING DIAL CONTROL: The Breather muscle trainer operates with independent settings for inhalation and exhalation. The ultimate lung trainer, supporting respiratory health by promoting belly breathing.
- THE BREATHER PINK IS FOR ALL AGES: From 8 -98, The Breather can be used by people of all ages, from children to adults, and especially our seniors. The Breather offers a gentle start to training and up to 6 different resistance options for you to progress in training your breath. For more intense training, check out the Breather Fit or Breather Voice devices.
- GUIDED MOBILE APP INCLUDED + BREATHER UNIVERSITY: PN Medical, the creators of The Breather offer an easy training plan, which is self paced through the Guided Mobile Training App to help you achieve the best results. You won’t go on this journey alone. From the Guided Breather Coach Mobile App to Breather University, where you can find tons of videos to help you along the way, The Breather Community will be with you every step of the way.
- SATISFACTION GUARANTEED: If you do not love The Breather product, the Mobile Guided App or The Breather Community, reach out to us for a return. We stand behind The Breather System and appreciate your support.
- TRUSTED COMPANY FOR OVER 40 YEARS: Our device has been tested and proven by extensive research and clinical studies to provide you with the best results. We are trusted by professional athletes, sports teams, training facilities, special forces, respiratory therapists, fitness centers, professional singers, podcasters, influencers and many more.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NG, Inc. | 9.93 | Yes | Yes | Yes |
Picture yourself sitting in a quiet corner of your living room, focusing entirely on the rhythmic expansion of your diaphragm as you work through a guided session. The Breather Pink turns respiratory conditioning into a manageable, daily ritual rather than a chore. I found the independent dial controls particularly impressive, allowing you to fine-tune both inhalation and exhalation resistance separately to target specific muscle groups. Whether you are a senior looking for gentle support or someone starting a fitness journey, the six resistance levels offer a clear path for progression. The inclusion of the mobile app and Breather University means you aren't just left with a piece of hardware. You have a digital coach guiding your technique. It is a sophisticated, drug-free approach to strengthening your lungs through intentional belly breathing.
Breather Fit Health & Wellness Natural Device
Breather Fit Natural Health and Wellness Device
- NO ONGOING COSTS- No batteries, no refills and no liquids required
- EASY TO USE- hand held and fits in your pocket with written and online video instructions
- QUICK TO USE- most people only need to use for 1- 5 minutes, 1-2 times per day
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NG, Inc. | 9.93 | Yes | Yes | Yes |
The Breather Fit Natural Device is a game-changer for anyone seeking wellness without the clutter of recurring expenses. I was immediately struck by how much this tool simplifies a daily routine. You don't have to worry about hunting for batteries, ordering expensive refills, or dealing with messy liquids. It is incredibly streamlined and portable, designed to slip right into your pocket for use on the go. Most sessions only take between one and five minutes, making it easy to fit into a busy schedule once or twice a day. Whether you are following the written guides or the online video instructions, the learning curve is virtually nonexistent. It is a rare find in the drugstore category to encounter something this low-maintenance and user-friendly.
Mtsooning Motorcycle Air Filter Pod, 39mm Washable Universal Clamp-On Breathers, Cone Intake filter Replacement for ATV Dirt Pit Bike Go Kart Motorbik...
- HIGH QUALITY: These air intake filter pods are made of metal with rubber connector,ensure better mileage and engine performance. A most efficient way to transform the looks of your motorcycle, your old air box will thank you for it!
- HIGH PERFORMANCE: The motorcycle pod air filter is to catch impurities in air to prolong the engine Life.Add more horsepower and ensure better mileage and engine performance.
- INSTALL SIMPLY: These motorcycle air filters are built in clamp-on design feature allows easy installation. Environmental protection and safety.
- Note: The inside diameter of the motorcycle air filters is 39mm.Please check your carburetor’s mouth outer diameter carefully before your purchasing to choose the right motorcycle pod air filter size.
- WIDE APPLICATION: These universal air intake filter pods are designed and manufactured for a wide variety of applications. Such as motorcycle, ATV, dirt pit bike, go kart and so on.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mtsooning | 9.86 | Yes | Yes | Yes |
The Mtsooning Motorcycle Air Filter Pod delivers an immediate aesthetic and performance upgrade through its high-efficiency cone design. Swapping out a bulky, restrictive old air box for this metal and rubber assembly is a simple way to revitalize your engine's breathing capabilities. I found that the clamp-on design makes installation incredibly straightforward, which is a huge plus for DIY enthusiasts working on ATVs, dirt bikes, or go-karts. By catching impurities more effectively, it helps prolong engine life while potentially boosting horsepower and mileage. Just make sure you double-check that your carburetor mouth is exactly 39mm before ordering, as that fit is critical for the seal. It is a budget-friendly way to transform the look and responsiveness of your small engine machine.
Harley Air Cleaner Turbine Intake Chrome Filter Kit Cnc Cut for Motorcycle Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007 Fitment - B (Blue)
AGECO Blue Billet Aluminum Turbine Air Cleaner Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part durable in use and reliable quality.💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley models Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007. This air intake system in blue color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and all mounting hardware.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle 🎁
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.69 | Yes | Yes | Yes |
Standard factory air intakes often lack the visual punch and airflow efficiency needed to truly make a Harley-Davidson stand out. This AGECO turbine intake solves that by replacing bulky stock components with a CNC-cut, billet aluminum design that screams aggression. The blue finish provides a sharp, clean aesthetic that breaks up the typical chrome look of a Dyna or Softail. Beyond the looks, the backing plate is engineered to promote smooth air delivery into your throttle body while cleverly hiding the internal crankcase breathers for a much tidier engine profile. It is a comprehensive kit that includes the high-volume filter and all necessary mounting hardware, making the upgrade process straightforward for anyone looking to improve both performance and style.
Motorcycle Air Cleaner Skull Style Air Filter Intake Kit Fit for Touring Road King Street Glide Trike 2008-16 Softail 2016-17 Dyna FXDLS 2017(Chromed)
Chuanhao Chromed Skull Style Motorcycle Air Filter Kit
- Feature: Amazing Skull Middle Finger Style, with the detachable skull logo on the air filter cleaner.
- Material: CNC machined from high quality aluminum housing, with high performance bolt-in part .
- Design: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- Fitment: Easy to install fit for Trike (2008-2016) Touring(2008-2016) Road King(2008-2016) Softail (2016-2017) Dyna FXDLS(2017). Please confirm this air cleaner fit your motorcycle or not before you purchase.
- Package Included: 1 x Air Cleaner Intake Filter with accessories.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Chuanhao | 9.77 | Yes | Yes | Yes |
This Chuanhao air cleaner kit is a bold statement piece for riders looking to inject some attitude into their Touring or Softail builds. The standout feature is undoubtedly the aggressive skull middle finger design, which includes a detachable skull logo that adds a custom, high-end feel to the engine bay. Beyond the aesthetics, the CNC machined aluminum housing feels substantial and durable, while the backing plate is intelligently designed to promote smooth airflow into the throttle body. I particularly like how it incorporates hidden internal crankcase breathers, keeping your engine's lines looking clean and professional. It is a high-performance bolt-in part that manages to balance a rebellious visual style with functional airflow improvements.
Harley Air Cleaner Chrome See Through Intake Filter Kit Cnc Cut for Motorcycle Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007 Fitment - B (R...
AGECO CNC Cut Red Chrome Air Intake Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part durable in use and reliable quality.💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley models Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007. This air intake system in red color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and all mounting hardware.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle 🎁
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.79 | Yes | Yes | Yes |
Your Harley’s engine profile changes the moment you swap that stock plastic housing for this aggressive AGECO red air intake. I spent some time looking at how the CNC-cut billet aluminum holds up, and the build quality feels incredibly solid for a bolt-in upgrade. The exposed filter design isn't just for show. The backing plate is engineered to promote smooth airflow directly into your throttle body, which is exactly what you want for better breathing. It’s a clever setup too, because it hides the internal crankcase breathers right inside the unit, keeping your engine bay looking clean and clutter-free. Whether you are riding a Dyna, Softail, or Touring model, this kit provides that high-performance, custom aesthetic without a complicated installation process.
Happy-Motor Motorcycle Turbine Air Filter Cleaner Intake Filter Fit For Harley Softail 93-15,01-07 Dyna Touring Black Filter
Happy-Motor Turbine Motorcycle Air Filter Intake System
- CNC Air Cleaner Intake Filter System With Logo For Harley Softail 93-15 04-07 DYNA TOURING
- Condition: Aftermarket 100% Brand New Exposed filter design that enhance air flow Backing plate promotes smooth airflow into carburetor/throttle body Built-in internal crank case breathers Includes high-volume air filter All mounting hardware included This item come with trademark ( As picture shown )
- Fitment: 2001-2007 Softail series with EFI engine: Night Train, Fit Fat Boy, Cross Bones v 2004-2007 Dyna series with EFI engine: Super Glide, Fit Street Bob, Low Rider, Fat Bob, Wide Glide 2002-2007 Touring series with EFI engine: Road King, Street Glide, Road Glide, Electra Glide 2008-2009 For Harley Rocker Softail 2008-2009 For Harley Cross Bones Softail
- PACKAGE INCLUDED: 1Pcs Air Cleaner Filter with Accessories (As Picture shown)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| HAPPY-MT | 9.58 | No | No | No |
The Happy-Motor Motorcycle Turbine Air Filter is a total game-changer for riders looking to upgrade their intake aesthetics and performance simultaneously. This CNC-machined kit features a striking exposed filter design that doesn't just look aggressive. It actively enhances airflow into your throttle body. I was particularly impressed by the integrated internal crankcase breathers and the backing plate, which is engineered to promote a smooth, consistent air stream. It is a comprehensive package that includes the high-volume filter and all necessary mounting hardware, making the installation process much more straightforward for Softail, Dyna, or Touring EFI models. It really gives that classic Harley look a modern, high-performance edge without breaking the bank.
Harley Air Filter Venturi Intake Air Cleaner Motorcycle Cnc Cut Chrome Kit for Touring Street Glide 2008 - 2016 Softail 2016 - 2017 Fitment - C (Gray)
AGECO CNC Cut Venturi Intake Air Cleaner Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part 💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley model Touring Street Glide 2008 - 2016 Touring Road Glide 2008 - 2016 Softail 2016 - 2017 Dyna FXDLS 2017 FLSTNSE 2014 - 2015 FLSTSE 2011 - 2012 FXSBSE 2013 - 2014. This air intake system in gray color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and accessories.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.83 | Yes | Yes | Yes |
Your Street Glide looks a bit too stock when you're cruising down a coastal highway, and this AGECO Venturi intake is the quickest way to fix that. I love how the gray CNC-cut billet aluminum gives the engine a clean, aggressive profile without looking over-the-top. The exposed filter design isn't just for show. It’s engineered to maximize airflow into your throttle body, which is essential for better performance. One of the smartest details is the backing plate, which hides the internal crankcase breathers so you don't have messy hoses cluttering up your engine bay. It’s a straightforward bolt-in upgrade that includes the high-volume filter, making it a solid choice for anyone looking to sharpen their motorcycle's aesthetic and breathing.
Arlen Ness 90 Degree Monster Sucker Air Cleaner No Cover Chrome 81-011
Arlen Ness 90 Degree Monster Sucker Chrome Air Cleaner
- Monster Sucker Air Cleaner Kits
- The ME Big Sucker intake kit features a patented Big Sucker hidden breather technology and more filter surface area than any other kit we know of on the market for maximum performance
- Ness hidden breathers are O-ringed at the heads and exits out the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware
- Each filter is constructed from synthetic material that is water-resistant, which in most cases eliminates the need for a rain sock
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MotoMummy | 9.94 | Yes | Yes | Yes |
Custom builders who demand raw performance without the clutter of messy hoses need the Arlen Ness Monster Sucker in their toolkit. This intake kit is a game-changer because it utilizes patented hidden breather technology that is O-ringed directly at the heads. This clever design allows the engine to breathe efficiently through the mouth of the injector or carburetor, completely removing the need for external hardware. You get more filter surface area here than almost anything else on the market, which translates directly to better airflow. Plus, the synthetic filter material is water-resistant, meaning you can usually ditch that annoying rain sock. It is a sleek, high-performance solution for anyone looking to maximize engine breathing while maintaining a clean, streamlined look.
Air Intake Filter Motorcycle Air Cleaner Cnc Cut Kit Black for Harley Touring Street Glide 2008 - 2016 Softail 2016 - 2017 Fitment - C
AGECO CNC Cut Billet Aluminum Air Intake Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part 💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley model Touring Street Glide 2008 - 2016 Touring Road Glide 2008 - 2016 Softail 2016 - 2017 Dyna FXDLS 2017 FLSTNSE 2014 - 2015 FLSTSE 2011 - 2012 FXSBSE 2013 - 2014. This air intake in gray color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and accessories.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.83 | Yes | Yes | Yes |
The aggressive, clean lines of this gray CNC-cut billet aluminum intake immediately transform the profile of your Harley engine. I was particularly impressed by how the design manages to look both simple and menacing at the same time. Beyond the aesthetics, the exposed filter setup is engineered to significantly enhance airflow, while the backing plate works overtime to ensure a smooth transition into your throttle body. One of the smartest engineering choices here is the hidden internal crankcase breather system, which keeps your setup looking tidy and professional without messy external hoses. It is a comprehensive bolt-in kit that includes the high-volume air filter and all necessary accessories, making the upgrade process straightforward for Touring, Softail, or Dyna models.
Air Cleaner Harley Filter Motorcycle Intake CNC Cut Kit Chrome for Models Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007 (Chrome, Fitment -...
AGECO Chrome Billet Aluminum Motorcycle Air Intake Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part 💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley models Dyna 2000 - 2017 Softail 2000 - 2015 Touring 2000 - 2007. This air intake system with replacement part in gray color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and accessories.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle 🎁
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.83 | Yes | Yes | Yes |
Most riders settle for bulky, restrictive plastic intakes that stifle engine breathing, but this AGECO CNC cut kit changes the game by prioritizing high-volume airflow. I was immediately struck by the aggressive, clean aesthetic provided by the exposed filter design and polished chrome finish. It is crafted from heavy-duty billet aluminum, making it a substantial bolt-in upgrade rather than a flimsy add-on. The backing plate is particularly clever because it facilitates smooth air movement into the throttle body while cleverly hiding the internal crankcase breathers for a much tidier engine bay. Whether you are running a Dyna, Softail, or Touring model, this kit delivers a performance-oriented look that feels as high-quality as it looks.
Harley Air Cleaner Motorcycle Filter Intake CNC Cut Kit Chrome for Models Touring Street Glide 2008 - 2016 Softail 2016 - 2017 (Chrome, Fitment - C)
AGECO Chrome Billet Aluminum Motorcycle Air Cleaner Kit
- ✅ MATERIAL: Strong Billet Aluminum with high performance bolt-in part 💪
- ✅ DESIGN: Exposed filter that enhance air flow. Easy to install for Harley model Touring Street Glide 2008 - 2016 Touring Road Glide 2008 - 2016 Softail 2016 - 2017 Dyna FXDLS 2017 FLSTNSE 2014 - 2015 FLSTSE 2011 - 2012 FXSBSE 2013 - 2014. This air intake system in black color was designed to give a clean and simple aggressive look.
- ✅ SPECIFICATION: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- ✅ INCLUDES: Built-in internal crank case breathers, replacement parts high-volume air filter and accessories.
- 🎁 GIFT: Buy it now and make a great present for you and your motorcycle 🎁
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AGECO | 5.69 | Yes | Yes | Yes |
Most riders assume that upgrading air intake is purely about raw power, but the real magic of this AGECO kit lies in its ability to declutter your engine's profile. By utilizing a CNC-cut billet aluminum design, this kit replaces bulky stock components with a streamlined, aggressive look that actually cleans up the aesthetic of your Touring or Softail model. The exposed filter design isn't just for show. It’s engineered to maximize airflow into your throttle body while the backing plate cleverly hides the internal crankcase breathers. It is a rare setup that manages to deliver a high-performance, bolt-in installation that simultaneously solves the messy problem of visible breather lines, making it a sophisticated upgrade for anyone wanting a cleaner, more purposeful engine bay.
Chuanhao Motorcycle turbine Air Cleaner , Air Cleaner Intake Filter System Kit CNC for harley sportster XL883 XL1200X
Chuanhao CNC Aluminum Skull Style Air Cleaner Kit
- Fitment: For Harley-Davidson sportster XL XR 48 72 iron883 models. Easy to install fit ,100% Brand New and High Quality .Please confirm this air cleaner fit your motorcycle or not before you purchase.
- Feature: Cool Skull Style, with the detachable skull pattern on the surface.
- Material: CNC machined from high quality aluminum housing, with high performance bolt-in part .
- Design: Exposed filter design that enhance air flow ,Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- Package Included: 1 x Air Cleaner Intake Filter with Accessories.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Chuanhao | 9.77 | Yes | Yes | Yes |
Your Sportster's engine profile changes instantly the moment you bolt this turbine-style intake onto the throttle body. I spent some time looking at how the CNC-machined aluminum housing catches the light, and the detachable skull pattern adds a serious custom edge that standard covers just can't match. Beyond the aggressive aesthetics, the exposed filter design is engineered to actually move air more efficiently into your carburetor or throttle body. I was particularly impressed by how the backing plate manages the mess, providing hidden internal crankcase breathers so you don't end up with unsightly hoses cluttering your frame. It is a high-performance, bolt-in upgrade that balances a dark, custom look with functional airflow improvements.
Aluminum CNC Air cleaners filters Motorcycle Air Cleaner Skull Style Air Filter Intake Kit Fit For Touring FLHXS Street Glide Special FLHR Road King 2...
FIASRAC CNC Aluminum Skull Style Air Intake Kit
- Fitment 1: for harley FLHR Road King / FLHRXS Road King Special / FLHTCU Electra Glide Ultra Classic / FLHTK Ultra Limited / FLHTKL Ultra Limited Low (2017-2020). FLHTKSE CVO Limited / FLHX Street Glide / FLHXS Street Glide Special / FLHXSE CVO Street Glide / FLTRU Road Glide Ultra / FLTRX Road Glide / FLTRXS Road Glide Special (2017-2020 ) FLSB Softail Sport Glide (2018-2020)
- Fitment 2 : for harley FLDE Softail Deluxe / FLFB Softail Fat Boy / FLFBS Softail Fat Boy 114 / FLHC Softail Heritage Classic / FLHCS Softail Heritage Classic 114 / FLSL Softail Slim / FXBB Softail Street Bob / FXBR Softail Breakout / FXBRS Softail Breakout 114 / FXFBS Softail Fat Bob 114 / FXLR Softail Low Rider (2018-2020) . FXDR 114 (2019-2020 )
- Material: CNC machined from high quality aluminum housing, with high performance bolt-in part . with the detachable skull logo on the air filter cleaner.
- Design: Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers. Replacement Inverted Air Fliter also available.
- Package Included: 1 x Air Cleaner Intake Filter with accessories.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Chuanhao | 9.77 | Yes | Yes | Yes |
Riders craving a dark, aggressive aesthetic for their touring or softail builds shouldn't overlook this skull-themed air cleaner. The FIASRAC kit swaps out boring factory components for a high-performance CNC machined aluminum housing that immediately commands attention on the road. What makes this stand out is the detachable skull logo, allowing you to customize your bike's personality while the backing plate works behind the scenes to promote smooth airflow into your throttle body. It even manages to keep your internal crankcase breathers hidden for a much cleaner, more professional look. Whether you are rolling on a Street Glide or a Fat Boy, this bolt-in kit provides a substantial visual upgrade without sacrificing the breathing performance your engine needs.
Updated version Air Cleaner Intake Filter Kit CNC Compatible with Harley Sportster Iron 883 Dark Custom XL883 1998-2017
FIASRAC Billet Aluminum Air Cleaner Intake Filter Kit
- [Perfect match] Fit for Harley Sportster Iron 883 Dark Custom XL883 1998 - 2017.
- [Upgrade material] Billet Aluminum backing plate with internal breathing passages for super clean installation. Exposed filter design that enhance air flow ,Backing plate promotes smooth air flow into carburetor or throttle body while also providing hidden internal crank case breathers.
- [Compatible] Compatible with both carburetor and fuel injected models.Black anodized polished surface.100% brand new aftermarket products. Package Included: 1 x Air Cleaner Intake Filter with Accessories.
- [Re-usable] The air filter is re-usable, simple wash, dry, and re-oil, eliminate the biggest restriction in a Harley Sportster Iron 883 Dark Custom XL883 engine.
- [3-No Generation] Internal breathing system,clean installation.No hoses, No oil-catchers and No brackets.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Chuanhao | 9.70 | Yes | Yes | Yes |
Most riders assume that adding more airflow to a Sportster requires a messy web of external hoses and oil catchers, but this FIASRAC kit proves otherwise. By utilizing a clever internal breathing system built directly into the billet aluminum backing plate, it manages crankcase breathers without any unsightly brackets or extra plumbing. The exposed filter design is a massive step up from restrictive stock setups, providing a much smoother path for air into your carburetor or throttle body. I particularly like the black anodized finish, which gives the engine a polished, high-end look. Plus, since the filter is fully re-usable with a simple wash and re-oil, it’s a low-maintenance upgrade that actually makes sense for long-term riding.
A Guide to Selecting the Best Air Intake Breathers
Understanding Filtration Media: Cotton vs. Synthetic vs. Foam
The most significant factor in a breather's performance is the material used to catch particulates. Washable Cotton Gauze is a favorite among enthusiasts because it offers excellent airflow and can be re-oiled to increase filtration efficiency. However, it requires regular maintenance to ensure the oil doesn't become clogged with debris. Synthetic Media is often preferred for high-dust environments. It is typically engineered to trap smaller particles more effectively than cotton and often requires less frequent cleaning. Finally, Open-Cell Foam is common in smaller engines or off-road applications where durability and simplicity are paramount, though it generally offers a lower level of fine-particle filtration compared to high-end synthetic weaves.
Pressure Regulation and Venting Capacity
A breather's primary job is to manage internal crankcase pressure. As an engine runs, combustion byproducts can migrate past piston rings, increasing pressure within the crankcase. If a breather cannot vent this pressure efficiently, it can blow out seals and gaskets. When choosing a breather, consider the volume of air it can move. High-performance engines with aggressive cam profiles often require high-flow breathers to prevent pressure buildup. Conversely, if you are looking for a breather to replace an OEM component, ensure the flow rate is compatible with your engine's original design to avoid creating a vacuum or excessive positive pressure.
Housing Construction and Environmental Durability
Because breathers are often located in exposed areas of the engine bay or chassis, the housing material is vital. Anodized Aluminum housings are the gold standard for performance applications, offering lightweight strength and excellent heat dissipation. This prevents the filter element from warping under high thermal loads. For more budget-conscious or utility-focused applications, Steel or heavy-duty plastics may suffice, but be wary of cheap plastics that can become brittle over time due to constant exposure to oil and heat. Look for a housing that includes a secure mounting flange or a threaded connection to ensure a leak-proof seal against the intake manifold or crankcase.
Oil Separation and Containment
One of the biggest risks with high-flow breathers is 'oil misting,' where oil vapors are sucked out of the crankcase and sprayed directly into the intake tract. To prevent this, look for breathers that incorporate an oil separation chamber or a baffle system. These designs use centrifugal force or physical barriers to knock oil droplets out of the air stream, allowing the oil to drain back into the engine while only the clean air passes through. This is especially important for fuel-injected engines, where excess oil in the intake can foul sensors and cause erratic idling.
Decision Logic: How to Choose
To make the final selection, follow this logic: If you are building a track car, prioritize high-flow synthetic media with an aluminum housing. If you are restoring a classic machine where aesthetics matter, look for polished chrome or anodized finishes. For heavy industrial or agricultural use, prioritize high-capacity foam or heavy-duty synthetic filters that can handle high particulate loads without clogging. Always verify that the mounting diameter and thread pitch match your existing hardware to avoid the need for makeshift adapters that can introduce air leaks.
Frequently Asked Questions
Quick answers about Air Intake Breathers before you buy.
Our Analysis of Air Intake Breathers
Top 10 Air Intake Breathers Brands on Amazon
Share of top-ranked products by brand, from our editorial analysis.
What Our Analysis Found
We've carried out a comprehensive analysis of 1,514 reviews on Air Intake Breathers, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select Air Intake Breathers priced around $124.05.
Our team of expert editors reviewed these high-quality items and handpicked the top 16 Air Intake Breathers for your consideration..
We are dedicated to assisting our users in finding the right filters Products based on their needs, saving them considerable time when choosing which Air Intake Breathers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
Comparison Table
Compare the top 16 picks at a glance — select a column to sort.