Graves motorsports smog block off plates for the yamaha yzf-r3 Premium Bulge Handlebar Pad Welded from mild steel then

Welded from mild steel then bathed in a four-step chrome-plating process

as well as the bonded e-glass and stainless steel mesh The RPT designation comes from adapting the design from Cobra's Race-Pro 4" muffler into this three-inch size The bodies begin as 3" at the front until they expand to 3

These Smog Block Off Plates are made from machined aluminum

road racing and street bike community

Graves motorsports smog block off plates for the yamaha yzf-r3 Premium Bulge Handlebar Pad Welded from mild steel thenGraves Motorsports Smog Block Off Plate for Yamaha YZF R3. The Graves Motorsports Smog Block Off Plate is designed to seal off the port on the valve cover used by the air injection system (a. k. a smog pumps or AIS). This product is intended for closed course competition use only. Use of this product for any other purpose is strictly prohibited. Fitment: Yamaha R3 2015 2017 The air induction system (AIS) burns unburned exhaust gases by injecting fresh