S&S Cycle
S&S Cycle delivers premium performance parts for Harley-Davidson motorcycles, blending racing heritage with American engineering. From exhaust systems and air cleaners to the iconic S&S Super E Carburetor and 475 Cam, every component is designed for power, reliability, and precision. Upgrade your Harley with S&S Cycle for unmatched throttle response and durability, whether on the street or the strip.
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S&S Cycle - 18300658 - Turbocharger Conversion Kit
S&S Cycle
$6,999.95S&S Cycle - 18300658 - Turbocharger Conversion KitFeaturesTuned for 10 psi of boost9:1 compression ratio, forged piston kit (OEM 11.5:1)Power Tune XTO® mufflerFull size aluminum intercoolerAll...$6,999.95 -
S&S Cycle - 18310992 - Power Tune® XTO Muffler - Race Only
S&S Cycle
$999.95S&S Cycle - 18310992 - Power Tune® XTO Muffler - Race OnlyFeaturesImproved power and torqueDual outlet and stylized tipsRemovable spark arrestorsMeets J335 forestry standardsSpecsMaterial304...$999.95 -
S&S Cycle - 18310994 - Power Tune® XTO Muffler - Race Only
S&S Cycle
$999.95S&S Cycle - 18310994 - Power Tune® XTO Muffler - Race OnlyFeaturesImproved power and torqueDual outlet and stylized tipsRemovable spark arrestorsMeets J335 forestry standardsSpecsModelPower Tune®...$999.95 -
S&S Cycle - 18310988 - Power Tune® XTO Muffler - 49 State
S&S Cycle
$1,176.95S&S Cycle - 18310988 - Power Tune® XTO Muffler - 49 StateFeaturesImproved power and torqueDual outlet & stylized tipsRemovable spark arrestors49 State legalMeets J335 forestry...$1,176.95 -
S&S Cycle - 18310990 - Power Tune® XTO Muffler - 49 State
S&S Cycle
$1,176.95S&S Cycle - 18310990 - Power Tune® XTO Muffler - 49 StateFeaturesImproved power and torqueDual outlet & stylized tipsRemovable spark arrestors49 State legalMeets J335 forestry standardsSpecsRiding...$1,176.95 -
S&S Cycle - 18602166 - Power Tune® XTO Muffler Insert - 1-3/4" - Plugged
S&S Cycle
$29.95S&S Cycle - 18602166 - Power Tune® XTO Muffler Insert - 1-3/4" - PluggedFeatures304 stainless steel constructionQuick, easy installationSold as eachSpecsOutside Diameter Imperial1-3/4''Riding...$29.95 -
S&S Cycle - 18602165 - Power Tune® XTO Muffler Insert - 2-1/4"
S&S Cycle
$35.95S&S Cycle - 18602165 - Power Tune® XTO Muffler Insert - 2-1/4"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsMaterial304 Stainless SteelProduct...$35.95 -
S&S Cycle - 18602162 - Power Tune® XTO Muffler Insert - 1-3/4"
S&S Cycle
$25.95S&S Cycle - 18602162 - Power Tune® XTO Muffler Insert - 1-3/4"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsMaterial304 Stainless...$25.95 -
S&S Cycle - 18310993 - Power Tune® XTO Muffler - Race Only
S&S Cycle
$999.95S&S Cycle - 18310993 - Power Tune® XTO Muffler - Race OnlyFeaturesImproved power and torqueDual outlet and stylized tipsRemovable spark arrestorsMeets J335 forestry standardsSpecsModelPower Tune®...$999.95 -
S&S Cycle - 18310989 - Power Tune® XTO Muffler - 49 State
S&S Cycle
$1,176.95S&S Cycle - 18310989 - Power Tune® XTO Muffler - 49 StateFeaturesImproved power and torqueDual outlet & stylized tipsRemovable spark arrestors49 State legalMeets J335 forestry standardsSpecsProduct...$1,176.95 -
S&S Cycle - 18310995 - Power Tune® XTO Muffler - Race Only
S&S Cycle
$999.95S&S Cycle - 18310995 - Power Tune® XTO Muffler - Race OnlyFeaturesImproved power and torqueDual outlet and stylized tipsRemovable spark arrestorsMeets J335 forestry standardsSpecsProduct...$999.95 -
S&S Cycle - 18310991 - Power Tune® XTO Muffler - 49 State
S&S Cycle
$1,285.95S&S Cycle - 18310991 - Power Tune® XTO Muffler - 49 StateFeaturesImproved power and torqueDual outlet & stylized tipsRemovable spark arrestors49 State legalMeets J335 forestry...$1,285.95 -
S&S Cycle - 18300623 - Turbo Conversion Kit
S&S Cycle
$6,999.95S&S Cycle - 18300623 - Turbo Conversion KitFeaturesApproximately 50% increase in horsepower over factoryKit is tuned for 10 psi of boostAll stainless steel air tubes with silicone couplersFull size...$6,999.95 -
S&S Cycle - 18602158 - Power Tune® XTO Insert Kit
S&S Cycle
$499.95S&S Cycle - 18602158 - Power Tune® XTO Insert KitFeaturesTunable inserts allow for easy sound and power adjustmentPower and torque tuningTone and sound adjustmentEasy to installSpecsUnitsKitProduct...$499.95 -
S&S Cycle - 18602160 - Power Tune® XTO Muffler Insert - 1-1/2"
S&S Cycle
$25.95S&S Cycle - 18602160 - Power Tune® XTO Muffler Insert - 1-1/2"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsUnitsEachOutside Diameter...$25.95 -
S&S Cycle - 18602168 - Power Tune® XTO Muffler Insert - 1-3/4" - Rear Plugged - 3.5 mm Holes
S&S Cycle
$40.95S&S Cycle - 18602168 - Power Tune® XTO Muffler Insert - 1-3/4" - Rear Plugged - 3.5 mm HolesFeatures304 stainless steel constructionQuick, easy installationSold as eachSpecsRiding...$40.95 -
S&S Cycle - 18602163 - Power Tune® XTO Muffler Insert - 1-7/8"
S&S Cycle
$24.95S&S Cycle - 18602163 - Power Tune® XTO Muffler Insert - 1-7/8"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsStyleUnpluggedProduct NameInsertModelPower Tune®...$24.95 -
S&S Cycle - 18602167 - Power Tune® XTO Muffler Insert - 1-3/4" - Front Plugged - 3.5 mm Holes
S&S Cycle
$16.95S&S Cycle - 18602167 - Power Tune® XTO Muffler Insert - 1-3/4" - Front Plugged - 3.5 mm HolesFeatures304 stainless steel constructionQuick, easy installationSold as eachSpecsMaterial304 Stainless...$16.95 -
S&S Cycle - 18602164 - Power Tune® XTO Muffler Insert - 2"
S&S Cycle
$25.95S&S Cycle - 18602164 - Power Tune® XTO Muffler Insert - 2"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsOutside Diameter Imperial2''ModelPower Tune® XTOMaterial304...$25.95 -
S&S Cycle - 18602161 - Power Tune® XTO Muffler Insert - 1-5/8"
S&S Cycle
$25.95S&S Cycle - 18602161 - Power Tune® XTO Muffler Insert - 1-5/8"Features304 stainless steel constructionQuick, easy installationSold as eachSpecsOutside Diameter Imperial1-5/8''Product...$25.95 -
S&S Cycle - 11400909 - Adjustable Clutch Weight Kit - RZR XP 1000
S&S Cycle
$299.95S&S Cycle - 11400909 - Adjustable Clutch Weight Kit - RZR XP 1000Features1.4 g magnetic weights lets you fine tune your machine for launch and engagement that not only improves performance but belt...$299.95 -
S&S Cycle - 11400908 - Adjustable Clutch Weight Kit - RZR XP Turbo
S&S Cycle
$299.95S&S Cycle - 11400908 - Adjustable Clutch Weight Kit - RZR XP TurboFeatures1.4 g magnetic weights lets you fine tune your machine for launch and engagement that not only improves performance but belt...$299.95 -
S&S Cycle - 11400907 - Adjustable Clutch Weight Kit - RZR Pro XP
S&S Cycle
$299.95S&S Cycle - 11400907 - Adjustable Clutch Weight Kit - RZR Pro XPFeatures1.4 g magnetic weights lets you fine tune your machine for launch and engagement that not only improves performance but belt...$299.95 -
S&S Cycle - 11313857 - Clutch Weight Kit - KRX
S&S Cycle
$391.95S&S Cycle - 11313857 - Clutch Weight Kit - KRXFeaturesIndividual weights can be adjusted from 87g bare to 109g fully loaded to increments of 1.4gMore efficient power transfer which results in longer...$391.95 -
S&S Cycle - 10220298 - Replacement Fuel Rail - Polaris
S&S Cycle
$299.95S&S Cycle - 10220298 - Replacement Fuel Rail - PolarisFeaturesUltimate solution for riders seeking reliability and enhanced fuel deliveryCrafted from premium grade 6061 aluminum and finished with a...$299.95 -
S&S Cycle - 10220284 - Fuel Rail Kit - Kawasaki
S&S Cycle
$184.95S&S Cycle - 10220284 - Fuel Rail Kit - KawasakiFeaturesIncludes a new, in-tank, fuel pick-up that is more robust than the stock partFuel pulsation dampener - reduces fuel pressure fluctuationsBest...$184.95 -
S&S Cycle - 09251512 - Cam Sprocket - Adjustable - Polaris
S&S Cycle
$189.95S&S Cycle - 09251512 - Cam Sprocket - Adjustable - PolarisFeaturesGeneral affects of lobe separation angleNarrower: increased overlap, broad torque cureWider: decreased overlap, increased peak...$189.95 -
S&S Cycle - 09348240 - Gasket Kit - Head/Base/Exhaust - Center Cooled - M8
S&S Cycle
$164.95S&S CYCLE - 09348240 - Gasket Kit - Head/Base/Exhaust - Center Cooled - M8FeaturesHead Gasket - Water/Oil Cooled - Center Cooled - M8Gasket Kit - Head/Base/Exhaust - 129"/132" - Center Cooled -...$164.95 -
Out of stock
S&S Cycle - 18002758 - 2-into-1 GNX Exhaust System - Race Only - Chrome - Touring
S&S Cycle
$995.95S&S CYCLE - 18002758 - 2-into-1 GNX Exhaust System - Race Only - Chrome - TouringFeatures4-1/2" MufflerLouvered baffleRace inspired Grand National End CapRemovable dB Reducer (J2825 compliant)Made in...$995.95 -
Out of stock
S&S Cycle - 18002757 - 2-into-1 GNX Exhaust System - Race Only - Guardian Black - Touring
S&S Cycle
$995.95S&S CYCLE - 18002757 - 2-into-1 GNX Exhaust System - Race Only - Guardian Black - TouringFeatures4-1/2" MufflerLouvered baffleRace inspired Grand National End CapRemovable dB Reducer (J2825...$995.95 -
S&S Cycle - 10220306 - Billet Fuel Rail Kit - Oval Port - M8
S&S Cycle
$149.95S&S CYCLE - 10220306 - Billet Fuel Rail Kit - Oval Port - M8 Features Replaces the stock plastic part with durable 6061 billet aluminum 44% increase in fuel capacity within the...$149.95 -
S&S Cycle - 09348253 - Head Gasket - Water/Oil Cooled - 136" - Center Cooled - M8
S&S Cycle
$45.95S&S CYCLE - 09348253 - Head Gasket - Water/Oil Cooled - 136" - Center Cooled - M8FeaturesHead Gasket - Water/Oil Cooled - Center Cooled - M8Gasket Kit - Head/Base/Exhaust - 129"/132" - Center Cooled...$45.95 -
S&S Cycle - 09348252 - Head Gasket - Water/Oil Cooled - 129"/132" - Center Cooled - M8
S&S Cycle
$49.95S&S CYCLE - 09348252 - Head Gasket - Water/Oil Cooled - 129"/132" - Center Cooled - M8FeaturesGasket Kit - Head/Base/Exhaust - 129"/132" - Center Cooled - M8Gasket Kit - Head/Base/Exhaust - Center...$49.95 -
S&S Cycle - 09311206 - 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8
S&S Cycle
$1,599.95S&S CYCLE - 09311206 - 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are...$1,599.95 -
S&S Cycle - 09311205 - 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/Highlighted Fins - M8
S&S Cycle
$1,599.95S&S CYCLE - 09311205 - 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are...$1,599.95 -
S&S Cycle - 09311204 - 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/o Highlighted Fins - M8
S&S Cycle
$1,599.95S&S CYCLE - 09311204 - 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/o Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are...$1,599.95 -
S&S Cycle - 09311203 - 136" Cylinder Kit - 4.625" Stroke - Black Granite w/Highlighted Fins - M8
S&S Cycle
$1,649.95S&S CYCLE - 09311203 - 136" Cylinder Kit - 4.625" Stroke - Black Granite w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are...$1,649.95 -
S&S Cycle - 09311201 - Cylinder Set - 4.25" Bore - Unhoned - Wrinkle Black w/Highlights - M8
S&S Cycle
$948.95S&S CYCLE - 09311201 - Cylinder Set - 4.25" Bore - Unhoned - Wrinkle Black w/Highlights - M8Features4.250" boreCylinder Set - 4.25" Bore - Unhoned - Black Granite w/Highlights - M84.250" boreCylinder...$948.95 -
S&S Cycle - 09311202 - 132" Cylinder Kit - 4.500" Stroke - Black Granite w/Highlighted Fins - M8
S&S Cycle
$1,649.95S&S CYCLE - 09311202 - 132" Cylinder Kit - 4.500" Stroke - Black Granite w/Highlighted Fins - M8FeaturesNot Compatible with VVT modelsWorks with stock crankcaseOriginal engine serial numbers are...$1,649.95 -
S&S Cycle - 09311200 - Cylinder Set - 4.25" Bore - Unhoned - Wrinkle Black w/o Highlights - M8
S&S Cycle
$948.95S&S CYCLE - 09311200 - Cylinder Set - 4.25" Bore - Unhoned - Wrinkle Black w/o Highlights - M8Features4.250" boreCylinder Set - 4.25" Bore - Unhoned - Black Granite w/Highlights - M84.250"...$948.95
S&S Cycle – High-Performance Harley-Davidson Engines, Exhausts & Motorcycle Parts
S&S Cycle has been a powerhouse in Harley-Davidson performance engineering since 1958, known for building some of the most reliable and powerful V-Twin engines in the world. From the iconic S&S Super E Carburetor to the Grand National Exhaust and Stealth Air Cleaner Kits, every part embodies decades of racing experience and precision craftsmanship, helping riders unlock true American horsepower.
Whether you’re upgrading with S&S camshafts, big bore kits, lifters, oil pumps, or pushrods, each component is designed for maximum performance, durability and throttle response. Riders trust S&S Cycle exhausts and engine upgrade kits for their proven power gains, crisp acceleration and unmistakable exhaust note, perfect for Harley enthusiasts who want both street and track-ready performance.
S&S Cycle also offers advanced intake, ignition and lubrication systems, giving riders the tools to fine tune every aspect of their Harley-Davidson. With a legacy rooted in racing innovation and American craftsmanship, S&S Cycle performance parts deliver the perfect balance of power, reliability and engineering excellence, making it the top choice for those who live and breathe V-Twin performance.