S&S has been an industry stalwart since 1958, producing high performance aftermarket parts for V-Twin motorcycles. Started in an Illinois basement, the company has grown into a big Wisconsin-based company that makes its products in the USA. With a history of drag and land speed racing, S&S knows what it takes to build high performance products likes engine components, exhaust and fuel systems and more for Harley-Davidson's and V-Twin motorcycles.