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An optional aluminum muffler bracket to further complement the entire system
Delivers an increase in power and torque
375” long swiveling dipstick
Screw-in caps are sold separately (use '84-E'96 style)
Graves motorsports lower 50mm velocity stacks R1 2009-2014 ABY-09R1-REVB Tour-Pak® Hardware Tether Kit An optional aluminum muffler bracketGraves Motorsports Yamaha R1 Lower 50mm Velocity Stacks for the 2009 2014 models. These 50MM Lower Velocity Stacks with Pivots were developed by Graves Motorsports for your Cross Plane Crank R1. This item is the "Lower" stack assembly only (see item # ABY 09R1 REVT to purchase the top add on). This stack kit improves power throughout the entire RPM range. The staggered tops allow the cylinders to share the available volume of air in the R1s air box
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