S&S Performance

513 products

S&S Cycle offers premium high performance solutions for Harley-Davidson® and other v-twin motorcycles that includes engine components, exhaust and fuel systems, engine upgrade kits, and complete engines. Browse the range below!

Power Pack – 129ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Black Pushrod Tubes. Fits Milwaukee-Eight 2017up with 107ci Oil Cooled Engine.

$7,609.99

Features & Benefits:- * 107ci to 129ci Big Bore Kit (4.320″ Bore) * Fits Oil Cooled Models. * Chain Drive Cam & Forged Pistons with 11.1 Compression Ratio * Wrinkle Black Finish with Highl...

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Power Pack – 129ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Chrome Pushrod Tubes. Fits Milwaukee-Eight 2017up with 107ci Oil Cooled Engine.

$7,609.99

Features & Benefits:- * 107ci to 129ci Big Bore Kit (4.320″ Bore) * Fits Oil Cooled Models. * Chain Drive Cam & Forged Pistons with 11.1 Compression Ratio * Wrinkle Black Finish with Highl...

Power Pack – 132ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Chrome Pushrod Tubes. Fits Milwaukee-Eight 2017up with 114ci Oil Cooled Engine.

$7,609.99

Features & Benefits:- * 114ci to 132ci Big Bore Kit (4.320″ Bore) * Fits Oil Cooled Models. * Chain Drive Cam & Forged Pistons with 11.1 Compression Ratio * Wrinkle Black with Highlighted...

$1,787.99

Features & Benefits:- * Adds up to 8 horsepower over stock header pipes. * Independent dual look with hidden crossover. * Exclusive design moves the rear cylinder header away from the passenge...

$1,792.99

Features & Benefits:- * Adds up to 8 horsepower over stock header pipes. * Independent dual look with hidden crossover. * Exclusive design moves the rear cylinder header away from the passenge...

$1,787.99

Features & Benefits:- * Adds up to 8 horsepower over stock header pipes. * Independent dual look with hidden crossover. * Exclusive design moves the rear cylinder header away from the passenge...

$649.99

The Power Tune XTO Insert kit was developed for tuning power and sound. The dealer kit includes two each of the 1.375″, 1.5″, 1.625″, 1.75″ plugged front with 3.5mm holes, 1.75″ plugged rear with ...