S&S Cycle

Precision Machined from Billet Aluminum Independent Scavenge Sections for Flywheel Cavity and Cam Chest Debris Screens in both scavenge pickups Magnet in cam chest to help prevent debris from entering pump Increased flow capacity on both feed and scavenge side Adjustable Pressure Relief Valve...

Building your M8 for big power? We've got the parts you need to bulletproof the top end of your valvetrain in one convenient kit! S&S performance parts are direct replacement for OEM pieces, but are stronger and more durable, giving your M8 the reliability...

The latest out of the S&S house of horsepower is an all Stainless Steel version of our popular SuperStreet exhaust for the Softail® platform. Combining the stainless header with stainless shields and muffler make for a great look without the punishment of melting boots...

Precision CNC machined forged aluminum Increased structural strength Dimensional stability Freedom for internal porosity Separate scavenge sections for flywheel cavity and cam chest scavenge each area more efficiently with no interference Gerotors are designed to tolerate more pinion shaft runout without damage Cam chest...

Increased filter area, combined with a radiused inlet and unique S&S stinger allow smoother faster airflow for more power. The S&S Stealth air cleaner backplate is made from the same high-strength, advanced, synthetic polymers used in high-performance automotive intake manifolds and high-end handgun bodies!...

Increased filter area, combined with an air horn like radiused inlet and unique S&S stinger cone to allow smoother faster airflow for more power. Add a stylish, high-performance look with a number of good looking available covers. Kit includes a backplate, filter element, top...

Complete 110" Big Bore and Cam Chest Kits!  Upgrade to the biggest bolt-in performance kit S&S makes for 1999-2017 Harley-Davidson® big twins (except 2006 Dyna® models and 2017 touring models). Get everything you need in one package. Contains an S&S 4” big bore cylinder...

Increased filter area, combined with an air horn like radiused inlet and unique S&S stinger cone to allow smoother faster airflow for more power. Add a stylish, high-performance look with a number of good looking available covers. Kit includes a backplate, filter element, top...

Complete 124" and 128" Big Bore and Cam Chest Kits! The S&S Power Package is the ideal combination of performance and savings, designed to transform your M8 without breaking the bank. For the latest generation HD’s, S&S is packaging their brand new 124” &...

Complete 124" and 128" Big Bore and Cam Chest Kits! The S&S Power Package is the ideal combination of performance and savings, designed to transform your M8 without breaking the bank. For the latest generation HD’s, S&S is packaging their brand new 124” &...