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Pro Circuit

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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  • Qty in Cart
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  • Subtotal
  • Pro Circuit - 0321945FP - Ti-6 Pro Exhaust Pro Circuit - 0321945FP - Ti-6 Pro Exhaust

    Pro Circuit - 0321945FP - Ti-6 Pro Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201847 - Ti-6 Pro ExhaustFeaturesCreated as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound regulationsSpecsEnd...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
    Subtotal:
  • Pro Circuit - 1151925 - R-304 Silencer Pro Circuit - 1151925 - R-304 Silencer

    Pro Circuit - 1151925 - R-304 Silencer

    Pro Circuit

    $206.29
    Pro Circuit - 18211895 - 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
    Qty in Cart: 0
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    Price:
    $206.29
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  • Pro Circuit - 1051912 - 304 Silencer Pro Circuit - 1051912 - 304 Silencer

    Pro Circuit - 1051912 - 304 Silencer

    Pro Circuit

    $205.95
    Pro Circuit - 18211898 - 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
    Qty in Cart: 0
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    Price:
    $205.95
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  • Pro Circuit - 1351925 - Spark Arrestor Silencer Pro Circuit - 1351925 - Spark Arrestor Silencer

    Pro Circuit - 1351925 - Spark Arrestor Silencer

    Pro Circuit

    $232.95
    Pro Circuit - 18211897 - 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
    Qty in Cart: 0
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    Price:
    $232.95
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  • Pro Circuit - 0121945A - T-6 Muffler Pro Circuit - 0121945A - T-6 Muffler

    Pro Circuit - 0121945A - T-6 Muffler

    Pro Circuit

    $799.95
    Pro Circuit - 18211891 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...
    $799.95
    Qty in Cart: 0
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    $799.95
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  • Pro Circuit - 0761985 - Works Pipe Pro Circuit - 0761985 - Works Pipe

    Pro Circuit - 0761985 - Works Pipe

    Pro Circuit

    $337.95
    Pro Circuit - 18201880 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...
    $337.95
    Qty in Cart: 0
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    Price:
    $337.95
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  • Pro Circuit - 0121945G - T-6 Exhaust Pro Circuit - 0121945G - T-6 Exhaust

    Pro Circuit - 0121945G - T-6 Exhaust

    Pro Circuit

    $1,089.95
    Pro Circuit - 18201845 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...
    $1,089.95
    Qty in Cart: 0
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    Price:
    $1,089.95
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  • Pro Circuit - 0351845FP - Ti-6 Pro Exhaust Pro Circuit - 0351845FP - Ti-6 Pro Exhaust

    Pro Circuit - 0351845FP - Ti-6 Pro Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201836 - Ti-6 Pro ExhaustFeaturesCreated as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound regulationsSpecsEnd...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
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  • Out of stock
    Pro Circuit - 1051925 - 304 Silencer Pro Circuit - 1051925 - 304 Silencer

    Pro Circuit - 1051925 - 304 Silencer

    Pro Circuit

    $205.95
    Pro Circuit - 18211894 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $205.95
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  • Out of stock
    Pro Circuit - 0351845F - Ti-6 Exhaust Pro Circuit - 0351845F - Ti-6 Exhaust

    Pro Circuit - 0351845F - Ti-6 Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201835 - Ti-6 ExhaustFeaturesConstructed of titanium throughout the head pipe, mid pipe and canisterThe ideal exhaust for any off-road or closed course racer looking for improved...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
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  • Out of stock
    Pro Circuit - 1031865 - 304 Silencer Pro Circuit - 1031865 - 304 Silencer

    Pro Circuit - 1031865 - 304 Silencer

    Pro Circuit

    $205.95
    Pro Circuit - 18211879 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $205.95
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  • Out of stock
    Pro Circuit - 0151845A - T-6 Muffler Pro Circuit - 0151845A - T-6 Muffler

    Pro Circuit - 0151845A - T-6 Muffler

    Pro Circuit

    $649.95
    Pro Circuit - 18211878 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...
    $649.95
    Qty in Cart: 0
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    $649.95
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  • Pro Circuit - PC4022-0003 - Replacement End Cap - Carbon Fiber - Ti-5/Ti-6 Pro Circuit - PC4022-0003 - Replacement End Cap - Carbon Fiber - Ti-5/Ti-6

    Pro Circuit - PC4022-0003 - Replacement End Cap - Carbon Fiber - Ti-5/Ti-6

    Pro Circuit

    $132.95
    Pro Circuit - 18600811 - Replacement End Cap - Carbon Fiber - Ti-5/Ti-6FeaturesSpecsMaterialCarbon FiberProduct NameEnd CapColor/FinishBlackRiding...
    $132.95
    Qty in Cart: 0
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    $132.95
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  • Pro Circuit - 1351912 - Spark Arrestor Silencer Pro Circuit - 1351912 - Spark Arrestor Silencer

    Pro Circuit - 1351912 - Spark Arrestor Silencer

    Pro Circuit

    $232.95
    Pro Circuit - 18211901 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $232.95
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  • Pro Circuit - 0851925 - Platinum Pipe Pro Circuit - 0851925 - Platinum Pipe

    Pro Circuit - 0851925 - Platinum Pipe

    Pro Circuit

    $365.95
    Pro Circuit - 18201857 - Platinum PipeFeaturesStamped AKDQ high quality carbon steel constructionHand welded and pounded seamsReinforced mounting brackets and stingerElectroless nickel plating...
    $365.95
    Qty in Cart: 0
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    $365.95
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  • Pro Circuit - 0751912 - Works Pipe Pro Circuit - 0751912 - Works Pipe

    Pro Circuit - 0751912 - Works Pipe

    Pro Circuit

    $337.95
    Pro Circuit - 18201858 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...
    $337.95
    Qty in Cart: 0
    Quantity:
    Price:
    $337.95
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  • Out of stock
    Pro Circuit - 0151845G - T-6 Exhaust Pro Circuit - 0151845G - T-6 Exhaust

    Pro Circuit - 0151845G - T-6 Exhaust

    Pro Circuit

    $1,089.95
    Pro Circuit - 18201834 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...
    $1,089.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,089.95
    Subtotal:
  • Out of stock
    Pro Circuit - 0321945F - Ti-6 Exhaust Pro Circuit - 0321945F - Ti-6 Exhaust

    Pro Circuit - 0321945F - Ti-6 Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201846 - Ti-6 ExhaustFeaturesConstructed of titanium throughout the head pipe, mid pipe and canisterThe ideal exhaust for any off-road or closed course racer looking for improved...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
    Subtotal:
  • Out of stock
    Pro Circuit - 0851812 - Platinum Pipe Pro Circuit - 0851812 - Platinum Pipe

    Pro Circuit - 0851812 - Platinum Pipe

    Pro Circuit

    $352.95
    Pro Circuit - 18201833 - Platinum PipeFeaturesStamped AKDQ high quality carbon steel constructionHand welded and pounded seamsReinforced mounting brackets and stingerElectroless nickel plating...
    $352.95
    Qty in Cart: 0
    Quantity:
    Price:
    $352.95
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  • Out of stock
    Pro Circuit - 0751812 - Works Pipe Pro Circuit - 0751812 - Works Pipe

    Pro Circuit - 0751812 - Works Pipe

    Pro Circuit

    $337.95
    Pro Circuit - 18201832 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...
    $337.95
    Qty in Cart: 0
    Quantity:
    Price:
    $337.95
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  • Pro Circuit - 1061985 - 304 Silencer Pro Circuit - 1061985 - 304 Silencer

    Pro Circuit - 1061985 - 304 Silencer

    Pro Circuit

    $205.95
    Pro Circuit - 18211929 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $205.95
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  • Pro Circuit - 1361985 - Spark Arrestor Silencer Pro Circuit - 1361985 - Spark Arrestor Silencer

    Pro Circuit - 1361985 - Spark Arrestor Silencer

    Pro Circuit

    $232.95
    Pro Circuit - 18211931 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $232.95
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  • Pro Circuit - 0141925A - T-6 Muffler Pro Circuit - 0141925A - T-6 Muffler

    Pro Circuit - 0141925A - T-6 Muffler

    Pro Circuit

    $799.95
    Pro Circuit - 18211961 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...
    $799.95
    Qty in Cart: 0
    Quantity:
    Price:
    $799.95
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  • Pro Circuit - 0131925A - T-6 Muffler Pro Circuit - 0131925A - T-6 Muffler

    Pro Circuit - 0131925A - T-6 Muffler

    Pro Circuit

    $799.95
    Pro Circuit - 18211893 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...
    $799.95
    Qty in Cart: 0
    Quantity:
    Price:
    $799.95
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  • Out of stock
    Pro Circuit - 0111312F - T-6 Exhaust Pro Circuit - 0111312F - T-6 Exhaust

    Pro Circuit - 0111312F - T-6 Exhaust

    Pro Circuit

    $487.95
    Pro Circuit - 18201534 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...
    $487.95
    Qty in Cart: 0
    Quantity:
    Price:
    $487.95
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  • Out of stock
    Pro Circuit - 0332145F - Ti-6 Exhaust Pro Circuit - 0332145F - Ti-6 Exhaust

    Pro Circuit - 0332145F - Ti-6 Exhaust

    Pro Circuit

    $1,487.95
    Pro Circuit - 18201981 - Ti-6 ExhaustFeaturesAsymmetrical muffler configuration for increased packing volumeMost systems equipped with a RC-4 Resonance Chamber for reduced sound outputMachined mid...
    $1,487.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,487.95
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  • Pro Circuit - 0132011F - T-6 Exhaust Pro Circuit - 0132011F - T-6 Exhaust

    Pro Circuit - 0132011F - T-6 Exhaust

    Pro Circuit

    $549.95
    Pro Circuit - 18201952 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...
    $549.95
    Qty in Cart: 0
    Quantity:
    Price:
    $549.95
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  • Pro Circuit - 4H00050 - T-4 Stainless Exhaust Pro Circuit - 4H00050 - T-4 Stainless Exhaust

    Pro Circuit - 4H00050 - T-4 Stainless Exhaust

    Pro Circuit

    $370.95
    Pro Circuit - 18201961 - T-4 Stainless ExhaustFeaturesExtensively track- and dyno-testedSteel Allen head screws make repacking an easy taskExclusive E-glass pillow packingIncludes USFS-approved spark...
    $370.95
    Qty in Cart: 0
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    Price:
    $370.95
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  • Pro Circuit - 0321545FP - Ti-6 Pro Exhaust Pro Circuit - 0321545FP - Ti-6 Pro Exhaust

    Pro Circuit - 0321545FP - Ti-6 Pro Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201600 - Ti-6 Pro ExhaustFeaturesCreated as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
    Subtotal:
  • Pro Circuit - 0321525FP - Ti-6 Pro Exhaust Pro Circuit - 0321525FP - Ti-6 Pro Exhaust

    Pro Circuit - 0321525FP - Ti-6 Pro Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201598 - Ti-6 Pro ExhaustFeaturesCreated as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound regulationsSpecsPipe...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
    Subtotal:
  • Pro Circuit - 0122030A - T-6 Muffler - KLX300R Pro Circuit - 0122030A - T-6 Muffler - KLX300R

    Pro Circuit - 0122030A - T-6 Muffler - KLX300R

    Pro Circuit

    $512.95
    Pro Circuit - 18212015 - T-6 Muffler - KLX300RFeaturesStainless steel mid pipeA United States Forest Service approved spark arrestor comes equipped making it easy to alternate between off-road and...
    $512.95
    Qty in Cart: 0
    Quantity:
    Price:
    $512.95
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  • Out of stock
    Pro Circuit - 0122014F - T-6 Exhaust Pro Circuit - 0122014F - T-6 Exhaust

    Pro Circuit - 0122014F - T-6 Exhaust

    Pro Circuit

    $549.95
    Pro Circuit - 18201980 - T-6 ExhaustFeaturesAsymmetrical muffler configuration for increased packing volumeMost systems equipped with a RC-4 Resonance Chamber for reduced sound outputMachined mid...
    $549.95
    Qty in Cart: 0
    Quantity:
    Price:
    $549.95
    Subtotal:
  • Pro Circuit - 0120911F - T-6 Exhaust Pro Circuit - 0120911F - T-6 Exhaust

    Pro Circuit - 0120911F - T-6 Exhaust

    Pro Circuit

    $549.95
    Pro Circuit - 18201972 - T-6 ExhaustFeaturesComes with a removable United States Forest Service (USFS) Approved Spark Arrestor making it easy to alternate between off-road and closed course...
    $549.95
    Qty in Cart: 0
    Quantity:
    Price:
    $549.95
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  • Pro Circuit - 0322125F - Ti-6 Exhaust Pro Circuit - 0322125F - Ti-6 Exhaust

    Pro Circuit - 0322125F - Ti-6 Exhaust

    Pro Circuit

    $1,396.95
    Pro Circuit - 18201976 - Ti-6 ExhaustFeaturesEquipped with RC-4 Resonance ChamberLighter weight than OEM systemHigh-grade titanium material used throughoutCarbon fiber end-capMachined aluminum...
    $1,396.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,396.95
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  • Pro Circuit - 1161985K - Ti-2 Silencer Pro Circuit - 1161985K - Ti-2 Silencer

    Pro Circuit - 1161985K - Ti-2 Silencer

    Pro Circuit

    $446.95
    Pro Circuit - 18211938 - Ti-2 SilencerFeaturesOffers the "factory" look and appearance while reducing weightOptimum performance gainsCNC-machined aluminum mounting bracketFor closed-course racing...
    $446.95
    Qty in Cart: 0
    Quantity:
    Price:
    $446.95
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  • Pro Circuit - 1161985 - R-304 Silencer Pro Circuit - 1161985 - R-304 Silencer

    Pro Circuit - 1161985 - R-304 Silencer

    Pro Circuit

    $206.29
    Pro Circuit - 18211930 - 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
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit - 1131985K - Ti-2 Silencer Pro Circuit - 1131985K - Ti-2 Silencer

    Pro Circuit - 1131985K - Ti-2 Silencer

    Pro Circuit

    $446.95
    Pro Circuit - 18211937 - Ti-2 SilencerFeaturesOffers the "factory" look and appearance while reducing weightOptimum performance gainsCNC-machined aluminum mounting bracketFor closed-course racing...
    $446.95
    Qty in Cart: 0
    Quantity:
    Price:
    $446.95
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  • Pro Circuit - 0151925A - T-6 Muffler Pro Circuit - 0151925A - T-6 Muffler

    Pro Circuit - 0151925A - T-6 Muffler

    Pro Circuit

    $649.95
    Pro Circuit - 18211934 - T-6 MufflerFeaturesConstructed of stainless steel throughout the mid-pipe and end-cap while the canister is constructed of aluminum for increased durabilityMachined aluminum...
    $649.95
    Qty in Cart: 0
    Quantity:
    Price:
    $649.95
    Subtotal:
  • Pro Circuit - 1131865K - Ti-2 Silencer Pro Circuit - 1131865K - Ti-2 Silencer

    Pro Circuit - 1131865K - Ti-2 Silencer

    Pro Circuit

    $446.95
    Pro Circuit - 18211880 - Ti-2 SilencerFeaturesOffers the "factory" look and appearance while reducing weightOptimum performance gainsCNC-machined aluminum mounting bracketFor closed-course racing...
    $446.95
    Qty in Cart: 0
    Quantity:
    Price:
    $446.95
    Subtotal:
  • Pro Circuit - 0752030 - Works Pipe Pro Circuit - 0752030 - Works Pipe

    Pro Circuit - 0752030 - Works Pipe

    Pro Circuit

    $349.95
    Pro Circuit - 18201923 - Works PipeFeaturesDurable construction conforms to the natural shape of the motorcycle for exceptional fit and performanceReinforced brackets and stingers prevent cracking,...
    $349.95
    Qty in Cart: 0
    Quantity:
    Price:
    $349.95
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Adding your products to cart

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.