Best Pro Circuit in 2026

The R-304 Shorty silencer was developed as a full-race two-stroke silencer and was designed to increase power over stock exhaust.

The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only.

Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer.304 stainless steel intake tube.Double-walled mounting brackets.6061 T-6 brushed aluminum housing.TIG and MIG welded for strength and durabilit

Spark arrested silencer

Internal metal baffle, chambers, and sound absorbing materials for a Muffled sound

Meets US Forest service standards

The Pro Circuit Axle Blocks are CNC machined from billet aluminum for light weight and durability.

The axle blocks have adjustment lines on the side which make for precise and easy wheel alignment.

CNC machined from billet aluminum.

The Pro Circuit Axle Blocks are CNC machined from billet aluminum for light weight and durability.

The axle blocks have adjustment lines on the side which make for precise and easy wheel alignment.

CNC machined from billet aluminum.

Built to meet the rigorous demands of motocross, the Pro Circuit shift lever is CNC-machined from aircraft-quality billet aluminum for strength, hard anodized for durability and comes with stainless steel spring hardware that resists corrosion.

The free-folding, knurled tip design helps prevent dirt clogging and is replaceable.CNC-machined from billet aluminum.Free-folding, knurled shifter tip.Comes with a bolt for installation.Made in the U.S.A.

Increased performance

Strong mounting brackets) for strength and durability

Removable USFS approved spark Arrestor

Increased performance

Strong mounting brackets) for strength and durability

Removable USFS approved spark Arrestor

Increased performance

Strong mounting brackets) for strength and durability

Removable USFS approved spark Arrestor

Increased performance

Strong mounting brackets) for strength and durability

Removable USFS approved spark Arrestor

We offer a replacement kit to fit those exhaust systems

It comes with all the necessary hardware to help get your exhaust looking new again.

Carbon fiber end-cap

Spark arrested silencer

Internal metal baffle, chambers, and sound absorbing materials for a Muffled sound

Meets US Forest service standards

Manufactured by Matrix Concepts, this stand is constructed from a blend of polycarbonate plastics and designed with anti-flex supports to help promote strength and eliminate rocking, which helps set it apart from a lot of the traditional metal stands

At 8.3 lb., the Pro Circuit Matrix Concepts stand is definitely at the front for one of the lightest, and most durable motorcycle stands on the market.

Equipped with Pro Circuit logos, the Pro Circuit Matrix Concepts stand will be sure to add style to your pit area, and peace of mind knowing it can handle those heavy, standard-sized dirt bikes

Increased performance

Strong mounting brackets) for strength and durability

Removable USFS approved spark Arrestor

We offer a replacement kit to fit those exhaust systems

It comes with all the necessary hardware to help get your exhaust looking new again.

Carbon fiber end-cap

Fit Type: Universal Fit

Deep aggressive exhaust note

Noticeable Interior resonance

Fit Type: Universal Fit

No internal packing to blow-out

Designed for maximum horsepower and torque

▲ Pair of Single Chamber Performance Race Muffler.

▲ Single Inlet Diameter: 2.25 inch (Center), Single Outlet Diameter: 2.25 inch (Center), Overall Length: 13 inch, Body Length: 7 inch, Body Height: 4.5 inch, Body Width: 9.5 inch

▲ Universal single chamber Race street Muffler 2.25" Center In / 2.25" Center Out. CHECK PRODUCT DETAILS CHART BELOW FOR OTHER SIZES.

▲ Pair of Single Chamber Performance Race Muffler.

▲ 7" Muffler Body Length, 12" Overall Length, 2.5" Muffler Inlet And Outlet Diameter, Body Type: 4" x 9" Oval

▲ Universal single chamber Race street Muffler 2.50" Center In / 2.50" Center Out. CHECK PRODUCT DETAILS CHART BELOW FOR OTHER SIZES.

▲ A pair of single chamber performance race mufflers.

▲ 7 inches (about 17.8 cm) muffler body height, 3 inches (about 7.6 cm) muffler inlet diameter.

▲ The chamber muffler is designed to create deep throat swelling and muffle exhaust noise.

Durable fully welded 409S stainless steel case

Straight through design

Moderate exterior performance tone

BRUSHED SATIN FINISH - The brushed satin finish of this universal performance muffler will upgrade the appearance of your vehicle's exhaust system thanks to its premium aesthetic

DEEP SIGNATURE MAGNAFLOW SOUND - This universal muffler is engineered to produce the deep resonant exhaust tone that MagnaFlow is famous for

UNIVERSAL FIT - The universal configuration of this performance muffler means that cutting, fabrication and/or welding may be required. MagnaFlow recommends professional installation

These are complete line of Heavy-Duty Shop Products that will bring you years of reliable performance

Brand name to trust on

These products on exceptionally high order fulfillment rates, breadth of available products

PACKAGE INCLUDE: 2x Wash plug, 2x Streamer.

WASH PLUG Fit (0.6" - 1.5"), please <b>REMOVE THE EXHAUST PLUG BEFORE STARTING ENGINE </b>.

WASH PLUG keeps water and moisture and foreign objects from entering your exhaust tube. Exhaust Wash Plug Prevents humidity from entering the pipe as it cools down and condensation.

[Premium Acoustic Control] EVIL ENERGY muffler is densely packed with excellent, sound-absorbing cotton, giving a low, deep tone that is reverberated to increase sound. Easy to install, bolts on in minutes.

[Size and Construction] This muffler is having 3" inlet, 4" exit, 18.5" length, polished stainless steel. Please measure your car's inlet before purchasing.

[Working Principle] A muffler is a device that is installed towards the end of a vehicle's exhaust system.The walls of the muffler are made of two layers of stainless steel, which help reduc vibration and absorb sound.

CLASSIC SOUND -- Tri-flow design provides that classic Thrush sound

ENGINEERED TO LAST -- 100% aluminized-coated shell and spun lock heads for long life

FLEXIBLE SOLUTION -- Customizable design offered in a variety of styles and sizes for universal fitment (may require specialized fabrication and/or welding)

Genuine OEM AYP Part

American Yard Products manufactures parts and equipment for leading brands in the industry. Those include Craftsman, Husqvarna, Poulan Pro, Poulan, Weed eater, Roper, Sears, Rally, EHP (Electrolux Home Products) and Yard Pro

Replaces: 149723

[Premium Acoustic Control] EVIL ENERGY muffler is densely packed with excellent, sound-absorbing cotton, giving a low, deep tone that is reverberated to increase sound. Easy to install, bolts on in minutes.

[Size and Construction] This muffler is having 2" inlet, 3" exit, 15" length, polished stainless steel. Please measure your car's inlet before purchasing.

[Working Principle] A muffler is a device that is installed towards the end of a vehicle's exhaust system, work on the principle of destructive interference and absorption. The walls of the muffler are made of two layers of stainless steel, which help reduc vibration and absorb sound.

Bright 409S Stainless Steel Construction

Moderate to Aggressive Exhaust Tone

Quick and Easy Installation

Genuine OEM Part

Replaces: 188655, 580532301

Compatible with specific Husqvarna and Poulan lawn tractors