Pro Circuit
Pro Circuit is a legendary name in motocross and off-road performance, producing high-performance motorcycle exhaust systems, silencers and racing engine components. Known for innovation and race-proven engineering, the brand develops Ti-6 titanium exhaust systems, T-6 stainless exhausts, Works pipes and R-304 silencers for professional and amateur riders. Pro Circuit components are designed to maximize horsepower, throttle response and overall engine efficiency.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out of stock
Pro Circuit - SS93250-SA - Spark Arrestor Silencer - RM250 '93-'95
Pro Circuit
$173.95Pro Circuit - SS93250SA - Spark Arrestor Silencer - RM250 '93-'95FeaturesSpecially engineered internal metal baffle eliminates the chance of a spark leaving the exhaust systemClog-free Krizzman...$173.95 -
Pro Circuit - SS89125-304 - 304 Silencer
Pro Circuit
$205.95Pro Circuit - SS89125304 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for...$205.95 -
Pro Circuit - SS89250-304 - 304 Silencer
Pro Circuit
$205.95Pro Circuit - SS89250304 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for...$205.95 -
Pro Circuit - SS89080-R - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - SS89080R - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Out of stock
Pro Circuit - SS02125-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - SS02125RE - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - SH96080-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - SH96080SE - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for...$205.95 -
Pro Circuit - SH92250-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - SH92250SE - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for...$205.95 -
Out of stock
Pro Circuit - SH89125-304 - 304 Silencer
Pro Circuit
$205.95Pro Circuit - SH89125304 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for...$205.95 -
Pro Circuit - SH02125-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - SH02125RE - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - SH02125-296 - Spark Arrestor Silencer
Pro Circuit
$232.95Pro Circuit - SH02125296 - Spark Arrestor SilencerFeaturesU.S. Forest Service approved and will reduce your bike's noise level at or near 96dB on most modelsInternal metal baffle, chambers, and sound...$232.95 -
Out of stock
Pro Circuit - 1051130 - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18211323 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Out of stock
Pro Circuit - 1351125 - Spark Arrestor Silencer
Pro Circuit
$202.95Pro Circuit - 18211325 - Spark Arrestor SilencerFeaturesU.S. Forest Service approved and will reduce your bike's noise level at or near 96dB on most modelsInternal metal baffle, chambers, and sound...$202.95 -
Out of stock
Pro Circuit - ST09065-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18211007 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Out of stock
Pro Circuit - SS93250X-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210178 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Pro Circuit - SS04250-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210060 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Out of stock
Pro Circuit - SH87500-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210153 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Out of stock
Pro Circuit - 4H05450 - T-4 Silencer
Pro Circuit
$593.95Pro Circuit - 18210175 - T-4 SilencerFeaturesUltra-responsive performanceIncredible horsepower gains when compared to stockDeveloped to increase the horsepower and torque throughout the power...$593.95 -
Out of stock
Pro Circuit - ST04125-SE - 304 Silencer
Pro Circuit
$171.95Pro Circuit - 18210037 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$171.95 -
Out of stock
Pro Circuit - ST04065-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210138 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Out of stock
Pro Circuit - SH04250-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210027 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - PH05125 - Works Pipe
Pro Circuit
$337.95Pro Circuit - 18200178 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Pro Circuit - PY05125P - Platinum Head Pipe
Pro Circuit
$352.95Pro Circuit - 18200137 - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$352.95 -
Pro Circuit - PY05125 - Works Pipe
Pro Circuit
$337.95Pro Circuit - 18200136 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Pro Circuit - PY05250P - Platinum Head Pipe
Pro Circuit
$365.95Pro Circuit - 18200139 - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Pro Circuit - PS04250 - Works Pipe
Pro Circuit
$349.95Pro Circuit - 18200100 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$349.95 -
Pro Circuit - PK04250 - Works Pipe
Pro Circuit
$349.95Pro Circuit - 18200066 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$349.95 -
Pro Circuit - PK04125 - Works Pipe
Pro Circuit
$337.95Pro Circuit - 18200042 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$337.95 -
Pro Circuit - SH93125-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210119 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - SS04250-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210058 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Out of stock
Pro Circuit - SK05250-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210158 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - SH89500-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210128 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Pro Circuit - SH04250-SE - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18210029 - 304 SilencerFeaturesLonger body design helps to reduce noise output6061 T6 brushed aluminum silencer bodyStainless steel inlet tube and end-capTig and mig welded for strength...$205.95 -
Pro Circuit - PH02250P - Platinum Head Pipe
Pro Circuit
$365.95Pro Circuit - PH02250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Pro Circuit - ST03250-RE - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18210054 - R-304 SilencerFeaturesThe compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing onlyHex head screws are...$206.29 -
Pro Circuit - 4H06150 - T-4 Exhaust
Pro Circuit
$418.95Pro Circuit - 18200586 - T-4 ExhaustFeaturesExtensively track- and dyno-testedSteel Allen head screws make repacking an easy taskExclusive E-glass pillow packingIncludes USFS-approved spark arrestor...$418.95 -
Out of stock
Pro Circuit - PK99250P - Platinum Head Pipe
Pro Circuit
$393.95Pro Circuit - PK99250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$393.95 -
Pro Circuit - PH97250P - Platinum Head Pipe
Pro Circuit
$393.95Pro Circuit - PH97250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$393.95 -
Pro Circuit - PK00250P - Platinum Head Pipe
Pro Circuit
$365.95Pro Circuit - PK00250P - Platinum Head PipeFeaturesUnique nickel bath technology gives the surface added abrasion resistance and enhances the aesthetic lookStamped AKDQ high-quality carbon steel...$365.95 -
Pro Circuit - PK95200DP2 - Platinum 2 Pipe
Pro Circuit
$365.95Pro Circuit - PK95200DP2 - Platinum 2 PipeFeaturesInnovative design helps with increased bottom to mid-range power, making it perfect for unique styles of ridingNickel-plated finish to prevent...$365.95 -
Pro Circuit - PK02065 - Works Pipe
Pro Circuit
$322.95Pro Circuit - PK02065 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...$322.95
Pro Circuit Performance Exhaust Systems – Motorcycle Exhausts, Racing Engine Components & Power Upgrade Kits
Pro Circuit has built a global reputation as one of the most influential brands in motocross and off-road motorcycle performance engineering. The company designs race-proven components that enhance engine output, throttle response and overall riding performance. Their product lineup includes advanced motorcycle exhaust systems, titanium silencers and precision-machined performance parts used by professional race teams and enthusiasts alike.
Among the brand’s most recognized products are the Ti-6 Pro titanium exhaust systems, T-6 stainless steel exhaust systems and Works Pipe performance expansion chambers. Riders also rely on R-304 silencers, spark arrestor silencers and Platinum series exhaust pipes designed to optimize power delivery across various engine platforms. In addition to exhaust solutions, Pro Circuit manufactures a range of racing components including clutch springs, water pump covers, linkage arms, axle blocks and throttle tubes that support durability and precision performance in competitive riding conditions.
Beyond exhaust technology, Pro Circuit provides performance-focused upgrades that enhance both engine reliability and chassis control. Products such as ignition covers, shift levers, clutch covers and fuel mixture screws help riders fine-tune their machines for optimal efficiency and responsiveness. Whether installing a motocross performance exhaust, upgrading engine hardware or improving throttle control with precision components, Pro Circuit continues to deliver race-developed solutions trusted by professional riders and off-road enthusiasts worldwide.