bbjones121 Posted December 4, 2008 Share Posted December 4, 2008 Would I be able to pass emissions in Colorado if I am only counting on the Cobb high flow cat converter in the downpipe? I am looking to get a new CBE so I think I would be left with only the cat in the dp at that point, since I have a non-catted uppipe also. Link to comment Share on other sites More sharing options...
tommypenguin Posted December 5, 2008 Share Posted December 5, 2008 Most people here in CO just keep your their stock DP in case they can't pass with their aftermarket DP. The stock DP has 2 cats in it. I won't have to pass emissions till september, let me know how things pan out for you if you try with a hi-flo cat, some people pass, some don't. Link to comment Share on other sites More sharing options...
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