Redthunder is the perfect combination of sound and performance. The Redthunder R&D team has consistently engineered high quality exhaust systems for enthusiasts who want a no-nonsense exhaust system that will perform and produce a superior sound, wherever and whenever. These systems are meticulously calibrated to offer a sound that ranges from deep, low tones to a more aggressive high-rpm sound for many Sportster, Evolution Big Twin, Twin Cam and Milwaukee Eight engines.

Note: Except where mentioned differently, all exhaust systems, mufflers, drag-pipes, etc. shown in our catalog, are for closed course competition or in show competition only. They will not meet legal noise and emission standards.