Lightning

catalytic convertors

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Old Jan 17, 2002 | 04:38 PM
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easterisland's Avatar
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From: Nashville
catalytic convertors

To those that are running w/o cats would you take the cats off if you had it to do over?

I plan on running 3/4#'s with pullies and big shot of nitrous. I was thinking 3" dual exhaust after the long tubes with no cats x-pipe and race mufflers exiting each side like high risk.

I've heard all the reasons not to remove the cats. I don't know if there is a hidden agenda here with vendors wanting to sell the high flow cats or the greenies wanting not to polute. It seems everywhere I look people are removing cats...
 
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Old Feb 16, 2002 | 01:24 PM
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Question

I cant find anybody to remove cats to try it out. Wouldn't your truck run like crapif you took them off?? Or can a chip reburn fix that problem??
 
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Old Feb 16, 2002 | 01:48 PM
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I'm probably going to keep the cats, less hassle with the smog inspections. Even with the extra boost and nitrous from what I have heard, you are really better off keeping the cats. I guess there was no conspiracy...

You can get a chip burned to keep the service engine light off.
 
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Old Feb 16, 2002 | 03:48 PM
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When my truck was mostly stock without a chip, just a pro-m 80. I ran 13.50 all the time, cut all 4 cats and dropped to 13.30's. No chip and never had a check engine light come on. Truck was very loud with out the cats. Best time with out a chip was a 13.32 with the cats off. I am running long tubes with tw0 cats now.
 
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Old Feb 16, 2002 | 07:37 PM
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I have long tubes with cats, but the only thing I heard when I was looking into the exhaust system deal, was that if you take the cats off it will be loud and the power increase wasn't that big.
Dale
 
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