I'm thinking upgrading my cat, is it worth it? What's a good choice?
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08-22-2012
I'm thinking upgrading my cat, is it worth it? What's a good choice?
08-22-2012
Check out this thread for safe mods: http://www.grandprixforums.net/safel...car-17482.html
It also tells you what is a good idea and what isn't worth it.
08-22-2012
depends.
is your cat clogged?
if not, dont worry about it.
08-22-2012
A high flow cat will set the P0420 code for the rear o2. And I think the factory cat is good for 350-400 whp
08-22-2012
Nice appreciate it!
08-22-2012
Not all of them and it depends on the year of the car. 97-99 you coudl do almost anything you wanted and the light wouldn't set. Newer it's common to set it.Originally Posted by acidcrashdburnd
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