Quote:
Originally Posted by cmitchell17
I am really curious how good the cats work? I feel like all aftermarket cats won't do anything as far as keeping smell and unburnt fuel smell away? I know when my drivers side only front primary stock cat failed, my car smelled pretty bad with only one of the stock cats down with an entire stock system.
The smell, and obnoxious exhaust noises and excessive loudness and sound quality is why I keep my exhaust 100% stock even though I think a set of proper length primaries would help it some.
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I have stock exhaust on mine now but really need to upgarde since i have a cam and heads. Im planing on leaving the rear o2's working to see if the cats keep off the CEL, if not i will tune them out. I just need a cat set up for visual inspections.
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2020 Camaro SS
Heads,cam,hi-ram,hhp tcm