graves smog block off plugs

Description

Graves Motorsports Smog Block Off Plugs 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. Made from machined aluminum. Sold set of four. There are two reasons why you want to remove the air injection system from your bike: If you are using your motorcycle on a closed course (racing, track days, etc.) you will want to remove all unnecessary equipment from your bike for …