M4 YA-CEKR115 BLACK STAINLESS STEEL SS CAT CATALYZER DELETE REMOVE PIPE
YZF-R1 YZF-R1M R1 R1M 2015 15 16 17 18 19 2016 2017 2018 2019
Yamaha R1 Stainless Catalytic Converter Eliminator
All Black Stainless Cat. Eliminator removes 11 lbs off stock. Will work with stock muffler, or any aftermarket muffler that mounts in Standard/Stock position.
NOTE: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 Yamaha R1.
