High Flow cats?
#1
High Flow cats?
Do they actually add any performance? Anyways, real question though is i have a 95 1 cat, if I throw on a generic high flow (it's free) will it throw codes?
#2
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Join Date: Sep 2007
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I also have a 95. Last year it failed emissions... dead cat. There are times I really hate living in CA. Anyway I tried a Magnaflow high flow cat (OBD1 compatible, but used regularly for OBD2) and it passed easily. No codes and no particular gains (that you might feel) either.
#3
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High flow cats are usually more compact and have larger inlet and outlets. The only time you will gain from one, is when exhaust system is bottle-necked with a small cat and large tubing. No codes either.
#5
I have two 3" metal substrate cats on mine. A typical ceramic substrate cats has 400 cells per inch, mine have 300 cells per inch. They cost a twice as much as ceramic though.