Shifty Posted February 5, 2008 Share Posted February 5, 2008 True duals on a C4 that had to go through emmisions testing? I would like to install my Hooker 02149's without teh y-pipe, but with dual Dynomax cats, x-pipe back to B&B cans. However,I don't know if this is going to be an emmisions problem. Let's say it's cool, do I get cats with teh air tap on teh side, or can I eliminate that? Thanks ahead of time.... Link to comment Share on other sites More sharing options...
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