Graves Motorsports Yamaha R1 + FZ8 Left Side Engine Case Cover 2wd others will be a plastic

others will be a plastic adapter pressed into a donut-like rubber

We get OVER 16+ rwhp at 14

4 lb weight savings

The 2017+ builds we typically do 100% in the ecu with adding race tools for quick shifter up and down

Graves Motorsports Yamaha R1 + FZ8 Left Side Engine Case Cover 2wd others will be a plasticGraves Motorsports Yamaha R1 07 08 + Yamaha FZ8 2011 Left Side Engine Case Cover (Silver). Graves Motorsports CNC'ed billet aluminum generator engine cover. Adds protection and style to your bike. Billet aluminum engine covers are now being mandated by many racing organizations across the USA (AMA + MRA + CCS + WERA + AFM, etc). Graves Motorsports Engine Covers are designed to help guard against leaks caused by grind through thus preventing crashes