Cat-Less
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Joined: Jan 2005
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From: Scarborough
Cat-Less
Will taking off cats be a reasonable gain to compliment corsa's with cutouts? I took off the cats in my old 84 camaro and it did wonders, I realize the cats back then must have been a little less refined.
Melting Slicks
Joined: Dec 2004
Posts: 2,322
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From: New York NY
Cruise-In VI Veteran
St. Jude Donor '05
I'll help get this thread going. Are you running stock manifolds and stock cats. Hi-flows cats are pretty efficient as well are the stock cats if you are running stock manifolds. I havent read about great gains made by removing the cats, normally around 5rwhp or so. Some people complain about the exhaust smell, others have no problems.
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From: Scarborough
Originally Posted by Icemanskis
I'll help get this thread going. Are you running stock manifolds and stock cats. Hi-flows cats are pretty efficient as well are the stock cats if you are running stock manifolds. I havent read about great gains made by removing the cats, normally around 5rwhp or so. Some people complain about the exhaust smell, others have no problems.
Le Mans Master
Joined: Oct 2002
Posts: 6,772
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From: Tampa FL
Originally Posted by canadianguy
Yep, stock manifolds, headers will have to wait till next year. I thought maybe taking off cats when I get the Indys put on, might make a difference when I open the cutouts. I'm starting to get the feeling headers on this car make a bigger difference, than on many others.
headers, cam, and heads .. biggest improvements .. aside from a maggie.
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From: Scarborough
Originally Posted by Neablas
what happend to 10k ..
headers, cam, and heads .. biggest improvements .. aside from a maggie.
headers, cam, and heads .. biggest improvements .. aside from a maggie.
Valid point, I'll have to tell you, my dog just had a $5000 surgery, and I am getting a new 2 tier deck put in the yard. 
