M4 YA9922GP-CE 3/4 BLACK CAT CATALYZER DELETE SLIP ON SO EXHAUST SYSTEM
YZF-R1 YZF-R1M R1 R1M 2015 15 16 17 18 19 2015 2016 2017 2018 2019
Standard slip on system with catalytic converter eliminator and BLACK CERAMIC GP2 muffler.
All Black Catalytic Converter Eliminator with the Black GP2 Canister is a sweet look for the new R1. This set up saves 12 lbs over stock and greatly improves performance.
NOTE: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 Yamaha R1.
