cat or no cat
28-Jan-2007, 01:21 PM
#1
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Join Date: Sep 2004
Posts: 74
cat or no cat
Cat or no cat, that is the question. I understand all the emission and exhaust laws in place, etc. BUT if you had a straight pipe rather than a cat would there be a performance gain?? I heard once that newer vehicles "require" cats and without will not run properly (i.e. actually lose power). Anyone know the facts??
28-Jan-2007, 01:41 PM
#2
well if you're car is obd-2 and you put on a test pipe, or remove the cat, you'll probably get a CEL b/c your secondary o2 sensor reading will be off.
Its a hefty fine if you get caugh without a cat. I run a high flow cat just to be safe. Plus i'm not fond of how damn loud cars are without a cat.
Its a hefty fine if you get caugh without a cat. I run a high flow cat just to be safe. Plus i'm not fond of how damn loud cars are without a cat.
28-Jan-2007, 08:39 PM
#3
Senior Member
Join Date: May 2003
Location: Ontario
Posts: 18,367
Leave the cat. on.
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