cat converters

[Fozz]

hey guys

im about to run 2,5inch pipe on my car and was wondering if any other car had a cat that would bolt on or if u guys knew of a cat that flowed bettter that would fit ive been told by some people to use an r33 cat is this right?

any help is apreciated

cheers

[Jonny Rochester]

Do a poll. I am wondering how many people here even use a cat, unless they have a stock JDM car. But we should be using them, right?

[Fozz]

<div class='quotetop'>QUOTE (Jonny Rochester @ Dec 26 2007, 12:09 AM) </div>umm yer i thought ud get raped by the cops if u didnt have one so id thought id be safe and use one

[psi_72]

haha cat, what cat officer, i didnt see no cat :2thumbs:
technically we dont need cats as the 86 didnt come with one from factory hence, not needing one.

[Jonny Rochester]

But if your car is engineered to use a different motor, like 4A-GE for example, maybe it should be using all the emission stuff that engine came with? Which includes a cat. I'm not sure.

But if your using a 2.5" pipe, any exhaust shop can help you. Cats are a fairly generic thing to bolt or weld in place. The exhaust shop can do it in 10 min.

[Wanabe_Garage]

did the ADM model even come with a cat?

Mine did not have one and was road worthied as such. I guess they weren't nessesary in 1983...

[Gilly]

if you do a engine conversion the emissions control that engine utilise must be used. this means any 4AGE/ZE/TE should run a cat and charcoal canister.

20v = cat
16v = cat
ZE = cat

use it, fine is like 10K highly doubt anyone has been made to pay that though

this is for QLD

R33GTST cat has been proven to flow as well as most aftermarket 2 1/4 2 1/2 cats as has the AC delco items used on the LS1 commodores

[Fozz]

thanks for the replies

yer i didnt relise most ae / ke didnt have cats my car was imported so the last people installed a cat on mine but its puniy as so i threw it away

[parrot]

My 2 1/4 inch has a 'high flow cat' of some sort put on by the exhaust joint.

I think dunnydores use 2 1/2 inch so you may pick one up cheap from one of them.

[dr1ft-pig]

whats a cat????










my car is too low for the cop to see whats under there haha