Is there such a thing as a universal cat?

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Apr 2, 2009 | 06:14 PM

#21

ss.slp.ls1

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Quote:

Originally Posted by Z28_LT1

Quick question: will OBDI cats read on my OBDII without any modification? just hook right up?

I don't understand the question. Cat's don't read anything. Did you mean o2's?

Apr 2, 2009 | 06:38 PM

#22

Z28_LT1

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Quote:

Originally Posted by ss.slp.ls1

I don't understand the question. Cat's don't read anything. Did you mean o2's?

oh. lol sorry u answered my question. lol

I was thinking there was a difference in OBDI and OBDII cats...

I guess that means there isnt?

Apr 2, 2009 | 06:40 PM

#23

ss.slp.ls1

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Quote:

Originally Posted by Z28_LT1

oh. lol sorry u answered my question. lol

I was thinking there was a difference in OBDI and OBDII cats...

I guess that means there isnt?

'93-'95 cars had one large cat right where the y-pipe merged. '96-'97 cars had dual cats. They are different.

Apr 2, 2009 | 06:50 PM

#24

Z28_LT1

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so what ur saying is that If i got a 94 camaro lt1 highflow cat, it wouldnt do me any good? even if I bought another highflow for the duals?

Apr 2, 2009 | 06:52 PM

#25

ss.slp.ls1

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Quote:

Originally Posted by Z28_LT1

so what ur saying is that If i got a 94 camaro lt1 highflow cat, it wouldnt do me any good? even if I bought another highflow for the duals?

You either need to buy universal high-flow cats and have them welded in at an exhaust shop. Or you need to buy high flow cats made for a '96-'97 Fbody.

Apr 2, 2009 | 07:03 PM

#26

Z28_LT1

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universal it is...

would it be easier to get used stock ones, gut them and just swap the exhuast b4 emissions?

Apr 2, 2009 | 07:09 PM

#27

ss.slp.ls1

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Quote:

Originally Posted by Z28_LT1

universal it is...

would it be easier to get used stock ones, gut them and just swap the exhuast b4 emissions?

Well if you'll notice, the passenger side cat is welded into the y-pipe and the drivers side is welded into one of the arms of the yipe. Your best bet would be to find a stock y-pipe for a '96-'97 Fbody and either weld in universal high-flos or cut the cats off and weld in straight pipe. I just so happen to have my stock y-pipe in the garage.

EDIT: I forgot that you are getting LT's and TD's. Just get high flows and weld them into your TD's shortly after the headers. That's all there is too it. Keep your stock manifolds, y-pipe, and cat back and you could swap them in every two years OR just pay the extra money and never touch it again after the swap.

Apr 2, 2009 | 07:31 PM

#28

Z28_LT1

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Sounds like a good Idea. Thats one of the reasons I decided to keep my emissions, so that I would actually have a chance of passing.

All I gotta do is find some used good high flows cuz i don't wanna pay an arm and a leg for them new...