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Old 11-17-2007, 11:01 AM   #1
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Im putting a turbo on my car now. I am wondering what i should run. Either a straight through pipe, or leave my high flow cat in? Which would sound better or make more power? Thanks

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Old 11-17-2007, 11:06 AM   #2
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Straight thru is better for power. Cat is better for neighbors.
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Old 11-17-2007, 11:24 AM   #3
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metalcat brand.

i'm all about big power but i'm also all about saving the world.
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Old 11-17-2007, 11:26 AM   #4
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I read somewhere that running AFRs on the rich side can lead to quicker catalyst failure as the fuel burns in the exhaust, true? It might be something to consider.
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Old 11-17-2007, 11:37 AM   #5
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Aha I don't care about my neighbors, I only care about the cops. And I have to get a emissions test, in 2008 my last one finally think it will pass with a straight through? Or am I going to have the throw the high flow back on?
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Old 11-17-2007, 11:40 AM   #6
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For an emissions test I think you will absolutely need the cat on.
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Old 11-17-2007, 11:57 AM   #7
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Just find a nice hi-flow cat and be done with it. My magnaflow 2.5 inch cat cost me 45 bucks. I pass emissions with flying colors and make plenty of power.
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Old 11-17-2007, 12:34 PM   #8
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yea thats what i got on now is a maganaflow high flow, so il just leave that on. I have a straight through, well my old cat, i bored it out so there not catalyst in it but it sounds tinny.
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