SKU: M4YA9932
MPN: YA9932
M4 YA9932 Standard Slip-On Exhaust with Polished Muffler for Yamaha YZF-R1 (2009-2014)

M4 YA9932 Standard Slip-On Exhaust with Catalytic Converter Eliminator and Polished Muffler is made specifically for Yamaha YZF-R1 (2015-current)

Bolt On/Slip Ons: These systems utilize the stock header assembly. Bolt on and slip ons replace the stock restricted muffler resulting in better sound and an increase in power. This slip on comes with dual polished canisters and eliminates the stock catalytic converter. Saves 5lbs over stock and produces 5 more horsepower. Comes with O2 bung and adapter for running the stock O2 sensor or aftermarket O2 sensors.

Find the other finishes here(Titanium, Carbon Fiber).