M4 Street Slayer Carbon Slip-On w.Catalytic Converter Eliminator Exhaust for 2015-2016 Yamaha R1/R1M | YA9944
The ultimate slip on for the new R1. All titanium tubing to eliminate the catalytic converter with M4’s MC36 style carbon canister. Removes 14.5 lbs over stock and produces a wicked exhaust note.
NOTE: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 Yamaha R1.