2-into-2 system gives you a crisp throttle response and increased performance Massive 2" diameter headpipes with high-volume, disc-tunable 4" SuperTrapp mufflers Expertly finished in show-quality chrome will definitely set a bike apart from the crowd Includes 12 4" discs per muffler body and all required mounting hardware Made in the U.S.A.. EXHAUST FAT SHOT FX/FLST