The stock exhaust is usually the first thing bikers swap out in order to improve the performance, look, and better yet, the sound of their bikes. Picking the right exhaust usually comes down to what style bike you ride. Large four-cylinder motorcycles, for example, typically come with a twin exhaust system. Customizing a sport bike often involves installing a slip-on muffler and cruisers typically replace the entire exhaust system. No matter what you ride, LeatherUp has the name brand exhaust system, slip-on, header or tip you're looking for.