M4 YA9922-GP BLACK GP2 SLIP ON SO EXHAUST SYSTEM
YAMAHA YZF-R1 YZF-R1M R1 R1M 2015 15
Standard slip on system with BLACK CERAMIC GP2 muffler.
This Ceramic Coated Black Slip On mounts to the stock catalytic converter to improve the looks of your R1.
NOTE: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 Yamaha R1.
