Buy headers with or w/o emissions?
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AIR/EGR
The Best V8 Stories One Small Block at Time
anyhow....its when you remove your Air Injection Reaction and your Exaust Gas Recirculation systems. pretty much this article will explain everything. i went over and found it on ls1camaro.net.
http://www.ls1camaro.net/sections.ph...ticle&artid=70
won't hurt your cats, before you ask. AIR system just cleans up your exhaust gases to try and clean up emissions during cold starts.





