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.
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Pro Circuit - 1352312 - Silencer
Pro Circuit
$202.95Pro Circuit - 18212081 - SilencerFeaturesSpecsUnitsEachPipe MaterialStainless SteelRiding StyleOff-RoadMuffler MaterialAluminumProduct NameSilencerEnd Cap Color/FinishStainless SteelEnd Cap...$202.95 -
Pro Circuit - 1152325K - Silencer
Pro Circuit
$446.95Pro Circuit - 18212080 - SilencerFeaturesSpecsEnd Cap MaterialTitaniumEnd Cap StyleConicalMuffler Color/FinishNaturalPipe MaterialTitaniumStyleShorty TI-2Riding StyleOff-RoadEnd Cap...$446.95 -
Pro Circuit - 1152325 - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18212079 - R-304 SilencerFeaturesDouble-walled mounting bracketsAllen head screws ensure easy repacking when needed for extended product life6061 T6 brushed aluminum silencer bodyTIG...$206.29 -
Pro Circuit - 0152245A - T-6 Slip-On Muffler - Stainless Steel
Pro Circuit
$799.95Pro Circuit - 18212069 - T-6 Slip-On Muffler - Stainless SteelFeaturesSpecsMaterialStainless SteelTypeSlip-OnUnitsEachModelT-6Product NameMufflerRiding...$799.95 -
Pro Circuit - 1152312K - Silencer
Pro Circuit
$446.95Pro Circuit - 18212078 - SilencerFeaturesSpecsEnd Cap StyleConicalRiding StyleOff-RoadPipe MaterialTitaniumEnd Cap MaterialTitaniumModelTi-2UnitsEachMuffler MaterialCarbon-Aramid FiberMuffler...$446.95 -
Pro Circuit - 1152312 - R-304 Silencer
Pro Circuit
$206.29Pro Circuit - 18212077 - R-304 SilencerFeaturesAllen head screws ensure easy repacking when needed for extended product lifeStainless steel end-capTIG and MIG welded for strength and durability304...$206.29 -
Pro Circuit - 1052325 - 304 Silencer
Pro Circuit
$205.95Pro Circuit - 18212076 - 304 SilencerFeaturesLonger body design helps to reduce noise outputStainless steel end-capTIG and MIG welded for strength and durabilityDouble-walled mounting bracketsAllen...$205.95 -
Pro Circuit - 0152225A - T-6 Slip-On Muffler - Stainless Steel
Pro Circuit
$779.95Pro Circuit - 18212068 - T-6 Slip-On Muffler - Stainless SteelFeaturesSpecsMaterialStainless SteelTypeSlip-OnModelT-6Product NameMufflerRiding...$779.95 -
Out of stock
Pro Circuit - 1352465 - 296 Silencer
Pro Circuit
$202.95Pro Circuit - 18212106 - 296 SilencerFeaturesInternal metal baffle, chambers, and sound absorbing materials for a muffled soundConstructed of aluminum and stainless steelDouble-walled mounting...$202.95 -
Pro Circuit - 1152465K - TI-2 Silencer
Pro Circuit
$446.95Pro Circuit - 18212105 - TI-2 SilencerFeaturesCNC-machined aluminum mounting bracketTitanium tubing and end-capCarbon silencer bodyClosed-course racing onlyMade in the U.S.A.SpecsProduct...$446.95 -
Pro Circuit - 0122445A - T-6 Slip-On Muffler - Stainless Steel
Pro Circuit
$799.95Pro Circuit - 18212090 - T-6 Slip-On Muffler - Stainless SteelFeaturesSpecsFeatureswith Spark ArrestorProduct NameMufflerRiding StyleOff-RoadModelT-6UnitsEachMaterialStainless...$799.95 -
Pro Circuit - 0732212 - Works Pipe - Yamaha YZ125
Pro Circuit
$337.95Pro Circuit - 18220529 - Works Pipe - Yamaha YZ125FeaturesHand welded and pounded seamsMade in the USAReinforced mounting brackets and stingerSpecsMaterialCarbon SteelRiding...$337.95 -
Pro Circuit - 0132345G - T-6 Exhaust System
Pro Circuit
$1,029.95Pro Circuit - 18202029 - T-6 Exhaust SystemFeaturesStainless steel construction throughout head pipe, mid pipe, and end-capAluminum canister constructionMachined aluminum muffler bracket for...$1,029.95 -
Pro Circuit - 0332345FP - TI-6 Pro Exhaust System
Pro Circuit
$1,352.95Pro Circuit - 18202032 - TI-6 Pro Exhaust SystemFeaturesImproves performanceTitanium construction throughout head pipe, mid pipe, and canisterCarbon fiber end-capMachined aluminum muffler bracket for...$1,352.95 -
Pro Circuit - 0332345F - TI-6 Exhaust System
Pro Circuit
$1,352.95Pro Circuit - 18202031 - TI-6 Exhaust SystemFeaturesIdeal for closed-course or off-road racingTitanium construction throughout head pipe, mid pipe and canisterCarbon fiber end-cap...$1,352.95 -
Pro Circuit - 0312145FP - Ti-6 Pro Titanium Exhaust System - Honda 450
Pro Circuit
$1,555.95Pro Circuit - 18201997 - Ti-6 Pro Titanium Exhaust System - Honda 450FeaturesImproves performanceTitanium construction throughout head pipe, mid pipe, and canisterCarbon fiber end-capStrong muffler...$1,555.95 -
Pro Circuit - 0112145G - T-6 Exhaust System - Stainless Steel - Honda 450
Pro Circuit
$1,169.95Pro Circuit - 18201995 - T-6 Exhaust System - Stainless Steel - Honda 450FeaturesStainless steel end-capAluminum canisterStrong mounting bracket for durabilityAsymmetrical muffler design allows for...$1,169.95 -
Pro Circuit - 0312145F - Ti-6 Titanium Exhaust System - Honda 450
Pro Circuit
$1,555.95Pro Circuit - 18201996 - Ti-6 Titanium Exhaust System - Honda 450FeaturesIdeal for closed-course or off-road racingTitanium construction throughout head pipe, mid pipe and canisterCarbon fiber...$1,555.95 -
Pro Circuit - 0832212 - Platinum Pipe - Yamaha YZ125
Pro Circuit
$352.95Pro Circuit - 18220530 - Platinum Pipe - Yamaha YZ125FeaturesStamped AKDQ high quality carbon steel constructionReinforced mounting brackets and stingerElectroless nickel plating increases part life...$352.95 -
Pro Circuit - 0132345A - T-6 Slip-On Muffler
Pro Circuit
$590.95Pro Circuit - 18212074 - T-6 Slip-On MufflerFeaturesStainless steel end-capAluminum canister constructionMachined aluminum muffler bracket for increased strength and durabilityAsymmetrical muffler...$590.95 -
Pro Circuit - 0112145A - T-6 Slip-On Muffler - Stainless Steel - Honda 450
Pro Circuit
$799.95Pro Circuit - 18212047 - T-6 Slip-On Muffler - Stainless Steel - Honda 450FeaturesImproved performanceStainless steel end-capStrong mounting bracket for durabilityAsymmetrical muffler design allows...$799.95 -
Pro Circuit - 4Y06050-TI - Ti-4 Exhaust System - TT-R 50
Pro Circuit
$593.95Pro Circuit - 18202167 - Ti-4 Exhaust System - TT-R 50FeaturesIncludes a USFS-approved spark arrestorBottom to top end power increaseCNC machined exhaust flange on head pipe for perfect fit2 piece...$593.95 -
Pro Circuit - 0122525G - T-6 Exhaust System - Kawasaki KX 250
Pro Circuit
$1,089.95Pro Circuit - 18202078 - T-6 Exhaust System - Kawasaki KX 250FeaturesMore features offered by the T-6 is the ability to meet AMA amateur racing sound requirements and that it comes equipped with a...$1,089.95 -
Pro Circuit - 0722212 - Works Pipe - Kawasaki KX112
Pro Circuit
$355.95Pro Circuit - 18220626 - Works Pipe - Kawasaki KX112FeaturesHand welded and pounded seamsReinforced mounting brackets and stingerMade in the USASpecsModelWorksTypeExhaustMaterialCarbon SteelRiding...$355.95 -
Pro Circuit - 0752585 - Works Pipe - KTM 85
Pro Circuit
$337.95Pro Circuit - 18220572 - Works Pipe - KTM 85FeaturesHand welded and pounded seamsReinforced mounting brackets and stingerMade in the USASpecsProduct NamePipeRiding...$337.95 -
Pro Circuit - 1032212 - 304 Silencer - Yamaha YZ125
Pro Circuit
$205.95Pro Circuit - 18212274 - 304 Silencer - Yamaha YZ125Features6061 T6 brushed aluminum silencer bodyStainless steel end-capAllen head screws ensure easy repacking when needed for extended product...$205.95 -
Pro Circuit - 1132212 - R-304 Silencer - Yamaha YZ125
Pro Circuit
$206.29Pro Circuit - 18212273 - R-304 Silencer - Yamaha YZ125FeaturesStainless steel end-capTIG and MIG welded for strength and durability6061 T6 brushed aluminum silencer bodyDouble-walled mounting...$206.29 -
Pro Circuit - 1132212K - Ti-2 Silencer - Titanium/Carbon Kevlar® - Yamaha YZ125
Pro Circuit
$446.95Pro Circuit - 18212272 - Ti-2 Silencer - Titanium/Carbon Kevlar® - Yamaha YZ125FeaturesOptimum performance gainsTitanium tubing and end-capCNC machined aluminum mounting bracketMade in the...$446.95 -
Pro Circuit - 13102525X - Type 296 S/A Silencer - Beta XTrainer
Pro Circuit
$202.95Pro Circuit - 18212271 - Type 296 S/A Silencer - Beta XTrainerFeaturesMeets U.S. Forest Service standardsConstructed of aluminum and stainless steelDouble-walled mounting bracket(s)Internal metal...$202.95 -
Pro Circuit - 13102530 - Type 296 S/A Silencer - Beta
Pro Circuit
$232.95Pro Circuit - 18212270 - Type 296 S/A Silencer - BetaFeaturesInternal metal baffle, chambers, and sound absorbing materials for a muffled soundConstructed of aluminum and stainless steelDouble-walled...$232.95 -
Pro Circuit - 11102530 - R-304 Silencer - Beta
Pro Circuit
$206.29Pro Circuit - 18212269 - R-304 Silencer - BetaFeatures6061 T6 brushed aluminum silencer body304 stainless steel intake tubeStainless steel end-capTig and mig welded for strength and durabilityAllen...$206.29 -
Pro Circuit - 10102530 - 304 Silencer - Beta
Pro Circuit
$205.95Pro Circuit - 18212268 - 304 Silencer - BetaFeatures6061 T6 brushed aluminum silencer bodyTIG and MIG welded for strength and durabilityDouble-walled mounting bracket(s)Stainless steel end-capAllen...$205.95 -
Pro Circuit - 1052585 - 304 Silencer - KTM 85
Pro Circuit
$205.95Pro Circuit - 18212155 - 304 Silencer - KTM 85Features6061 T6 brushed aluminum silencer bodyTIG and MIG welded for strength and durabilityStainless steel end-capDouble-walled mounting bracket(s)Allen...$205.95 -
Out of stock
Pro Circuit - 1352585 - Type 296 S/A Silencer - KTM 85
Pro Circuit
$202.95Pro Circuit - 18212158 - Type 296 S/A Silencer - KTM 85FeaturesConstructed of aluminum and stainless steelMeets U.S. Forest Service standardsInternal metal baffle, chambers, and sound absorbing...$202.95 -
Pro Circuit - 07102530 - Works Pipe Exhaust - Beta
Pro Circuit
$349.95Pro Circuit - 18202163 - Works Pipe Exhaust - BetaFeaturesHand welded and pounded seamsReinforced mounting brackets and stingerMade in the USASpecsTypeExhaustUnitsEachProduct NamePipeRiding...$349.95 -
Pro Circuit - 0111415G - T-6 Exhaust System - Stainless Steel - Honda CRF150R
Pro Circuit
$1,089.95Pro Circuit - 18202165 - T-6 Exhaust System - Stainless Steel - Honda CRF150RFeaturesStainless steel throughout head pipe, mid pipe and end-capAluminum canister constructionIdeal for closed-course or...$1,089.95 -
Out of stock
Pro Circuit - 1152585 - R-304 Silencer - KTM 85
Pro Circuit
$206.29Pro Circuit - 18212156 - R-304 Silencer - KTM 85FeaturesTIG and MIG welded for strength and durabilityDouble-walled mounting bracket(s)Stainless steel end-cap304 stainless steel intake tubeAllen head...$206.29 -
Out of stock
Pro Circuit - DC0005 - Front Fender Decal - .Com - Black
Pro Circuit
$11.95Pro Circuit - PCDC0005 - Front Fender Decal - .Com - BlackFeaturesThick, flexible vinyl for great looks and easy applicationEach set includes two side stickers, fits standard bikes...$11.95 -
Out of stock
Pro Circuit - TB-02 - Throttle Tube - Honda/KTM - Aluminum
Pro Circuit
$59.95Pro Circuit - TB02 - Throttle Tube - Honda/KTM - AluminumFeaturesStronger and more durable than OEM plastic unitsSpecsMaterialAluminumUnitsEachColor/FinishBlackTypeThrottleRiding StyleOff-RoadFor...$59.95 -
Pro Circuit - TB-05 - Throttle Tube - CRF - Aluminum
Pro Circuit
$59.95Pro Circuit - TB05 - Throttle Tube - CRF - AluminumFeaturesStronger and more durable than OEM plastic unitsSpecsRiding StyleOff-RoadColor/FinishBlackTypeThrottleUnitsEachFor Handlebar Diameter...$59.95
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.