Graves motorsports yamaha r1 smog block off plugs 98-03 XD-4 Depart Helmet these mufflers have a spun

these mufflers have a spun and louvered baffle

It comes with a single Lambda receiver bung for on track data logging

“LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED

2021+ RZR Turbo S

even in wet conditions

Graves motorsports yamaha r1 smog block off plugs 98-03 XD-4 Depart Helmet these mufflers have a spunGraves Motorsports Yamaha R1 Smog Block Off Plugs 98 03 Graves Motorsports Yamaha R1 Smog Block Off Plugs for the 98 03 model year motorcycles. Graves Motorsports Smog Block Off Plates are designed to seal off the ports on the cylinder head used by the air injection system (a. k. a smog pumps or AIS). Once these are capped off the air injection system can be safely removed. These Smog Block Off Plates are made from machined aluminum. There are two