Graves motorsports top velocity stacks r1 2009-2014 ABY-09R1-REVT Supermoto Evo Front Fender This spectacular Cat Eliminator Slip-on

This spectacular Cat Eliminator Slip-on removes your factory catalytic converter

Simple installation

1-1/4" diameter tubing

Taller than standard detachable backrest with a smaller pad Pad measures 6

E-COMPOUND BELTS - XP1000 UPGRADED

Graves motorsports top velocity stacks r1 2009-2014 ABY-09R1-REVT Supermoto Evo Front Fender This spectacular Cat Eliminator Slip-onGraves Motorsports Yamaha R1 Top Velocity Stacks 09 14 Graves Motorsports Yamaha R1 Top Velocity Stacks for the 2009 2014 models. This "Upper" or "Top" velocity stack is sold seperately from the lower billet machined piece shown in picture ( Lower Part # ABY 09R1 REVB). See below for full details and restrictions on these parts when used with stock pieces. The upper stacks must be used with a YEC ECU or Flash Tune and correct setting will be supplied