catalytic converter
Thread Starter
Staging Lane
Joined: Apr 2006
Posts: 60
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catalytic converter does any one have any pics of the stock cats off their car? I'm curious about what kind of a restriction they pose. I know that what the old ones look like from the 80's, but I have'nt seen what the inside of the my camaro's look like.
On The Tree
Joined: Mar 2005
Posts: 146
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if you're talking about LS1 cats, then you have little to worry about. newer cats are much smaller, lighter, and just overall better than anything from the 80's. if you don't even have headers yet, then don't worry about the performance of your stock cats. if/when you upgrade to any kind of headers, then would be the time to also upgrade to high-flow cats. (if you want to keep your car smog legal, if not, ditch the cats)
Board Certified Idiot
Joined: Oct 2005
Posts: 714
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From: EHT ..New JERSEY
Originally Posted by terry02
well my thought was to run the stock manifolds and just delete the cats with a new y-pipe. Thought a small performance gain and a little more noise could be had
Dude just By a Cutout then
