More Power RacingFree ShippingDesigned to seal off the ports on the valve cover used by the air injection system (AIS). The AIS burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons.<br><br>Once these are capped off the air injection system can be safely

Smog Block-Off Plates

Graves Motorsports Smog Block-Off Plates

Designed to seal off the ports on the valve cover used by the air injection system (AIS). The AIS burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons.

Once these are capped off the air injection system can be safely removed. The Smog Block Off Plates are made from CNC'ed billet aluminum and feature the Graves Motorsports “G” logo. Why remove the air injection system;
1. 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 reduced weight and ease of maintenance.
2. To get an accurate Air:Fuel (A/F) ratio when dynoing the bike. The air injection system pumps fresh air directly into the exhaust stream in order to burn off any unused fuel. UThe A/F ratio is thrown off by the extra “fresh air” in the exhaust stream. By removing the air injection system you can achieve an accurate A/F ratio.
Sold in pairs.

Price
Smog Block-Off PlugsAB007 $24.95
Fits:
R1 2002-03
Smog Block-Off PlatesAB013 $39.95
Fits:
GSXR1000 2005-08
Smog Block-Off PlatesAB011 $39.95
Fits:
R1 2004-13
R6 2003-13
R6S 2006- 09
FZ1 - All
ZX6RR 2003- 08
ZX10R -All
ZX14R -All

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