The YOSHIMURA RS-4 Race Slip-On Exhaust System is the pinnacle of performance engineering, designed to give you an edge on the track. This exhaust system has been developed through extensive collaboration with factory teams, ensuring enhanced performance, reduced sound levels, and improved mass centralization. Experience the ultimate in racing technology with the RS-4 and elevate your ride to new heights. Features: * Shape: Pentagonal-shaped muffler for optimal performance * Volume: Maximized internal volume for increased efficiency * Chamber: Polyresonant duplex front chamber for superior sound quality * Baffle: Stepped, two-stage core baffle for enhanced exhaust flow * Compatibility: Spark Arrestor/Sound Insert Compatible for versatile use