5th Gen Catalytic Converter....how big is it?

1309 Views 5 Replies 2 Participants Last post by smoothludey, Mar 28, 2001

SilverTypeSH

Discussion Starter · Mar 28, 2001

I'm thinking about building a turbo for my 97 Prelude, but I'm curious as to what kind of catalytic converter I should get to replace the one I have. How large are the openings on the ends of the stock cat? Can it be modified to be 3" openings? If not, what should we buy for a street (legal) cat? Is the 3" high flow cat legal?

Any help would be great

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smoothludey

· #2 · Mar 28, 2001

The stock 5gen cat has 2 inch openings front and back. I don't know who makes a 3 inch high flow cat for the 5gen, cuz random technology only makes a 2inch one. If you live in an area where emissions testing doesn't exist...go obd1 and get a 3 inch straight pipe.

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SilverTypeSH

Discussion Starter · #3 · Mar 28, 2001

Thats the problem...I live in a place where emissions are tested regularly. So you see my dilema. Now, about that 3" high flow cat...is it legal?

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SilverTypeSH

Discussion Starter · #4 · Mar 28, 2001

All you guys out there with Turbo's on your Preludes....did you replace the cat with a high flow? Do you pass emissions tests?

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· #5 · Mar 28, 2001

Car Sound makes a 3" cat. No one makes a 3" exhaust though, so you will need to have it custom made.

------------------
Billy
North Texas Prelude Owners Group
www.ntpog.org

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smoothludey

· #6 · Mar 28, 2001

I heard that Thermal Research made a 3 inch pipe for the 5gen...

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