This system saves 15lbs over stock. It is the ultimate performance slip-on from M4. Lightest weight, best performing and a true ‘GP’ racebike look. Quiet inserts are available to personally tune the noise level of your R1.
- All Titanium Tubing
- Q1 Quiet Insert Installed
- Stage 2 Q3 Quiet Insert Sold Separate
NOTE: M4 Recommends re-flashing your stock ECU to unleash the full potential of all M4 products on the 2015 Yamaha R1.