Smog Block Off Kit CRF450RL CRF450L
Smog Block Off Kit CRF450RL CRF450L
Smog Block Off Kit CRF450RL CRF450L
Home > Dual Sport Parts > Honda CRF450RL > Smog Block Off Kit

Graves Motorsports Smog Block Off Plate for Honda CRF450L, CRF450RL and CRF450X (2019+ models). These Smog Block Off Plates are designed to seal off the ports on the valve cover used by the air injection system (a.k.a smog pumps or AIS). Sold as 1 plate shown.

Fitment: 2019+ Honda CRF450RL, CRF450L, CRF450X

The air induction system (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. These Smog Block Off Plates are made from CNC'ed billet aluminum and feature the Graves Motorsports "G" logo. There are three reasons why you want to remove the air injection system from your bike;

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. Unfortunately by doing this the 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.
3. This addition will typically remove the majority of popping on deceleration that can be experienced with un-burnt gasses within the emission charcoal chamber. Note: Proper tuning may be needed and this is general feedback.

NOTE: This product is intended for closed course competition use only. Use of this product for any other purpose is strictly prohibited.


** IN STOCK - Usually leaves our warehouse in 1-3 business days.



Smog Block Off Kit CRF450RL CRF450L
CRF450RL-AB026Retail Price: $29.99Our Price: $28.95





WARNING! - Motor sports can be extremely dangerous, injury or death can occur. No warranty is made or implied regarding any product sold by Devo Tech, Inc. / SoloRacer.com to protect users from injury or death. The user assumes all risks. Please read the rest of our Legal Disclaimer before ordering.

Our on-line store is up and running 24 hours a day, 7 days a week. We use Yahoo! Secure Servers for all transactions so you can shop with complete confidence. If you are uncomfortable ordering online, call or email us for more ordering options.
SRmoto.com |  Corbeau USA
©Copyright 2002-2024 by Devo Tech, Inc.