Need New Cats =(

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Oct 9, 2008 | 10:40 PM

Dostovel

Thread Starter

Burning Brakes

Joined: May 2006

Posts: 898

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From: Avatar Nazi Land Orange County, CA

Need New Cats =(

Well my '88 is long overdue for some new catalytic converters, one of them is rattling and seriously hampering my vehicle's performance. My mechanic says the car has 3? Damn didn't know that! Thought it was only two, damn 80s cars lol

Where can I get some decent high flow cats? Any suggestions?

Oct 9, 2008 | 10:41 PM

Demonic85

Team Owner

Joined: Feb 2006

Posts: 24,460

Likes: 7

From: sw Ohio

Actually you have 2 Pre-cats on the front Y-pipe, and 1 catalytic converter.

Oct 9, 2008 | 10:54 PM

Dostovel

Thread Starter

Burning Brakes

Joined: May 2006

Posts: 898

Likes: 0

From: Avatar Nazi Land Orange County, CA

Quote:

Originally Posted by Demonic85

Actually you have 2 Pre-cats on the front Y-pipe, and 1 catalytic converter.

Alright, so it's safe they all need to be replaced right? I mean, after 20 years and since the driver's side one is making noise. What do I need to get, and are there any good deals online?

Oct 9, 2008 | 11:10 PM

856SPEED

Melting Slicks

Joined: Apr 2007

Posts: 2,616

Likes: 111

I like the Random Technology Hi-Flow cats; not real cheap, though.....

Oct 10, 2008 | 12:30 AM

mako41

Pro

Joined: Sep 2008

Posts: 694

Likes: 27

From: St James New York

Front Y-Pipe with precats

Quote:

Originally Posted by Dostovel

Alright, so it's safe they all need to be replaced right? I mean, after 20 years and since the driver's side one is making noise. What do I need to get, and are there any good deals online?

I have an OEM GM front y-pipe from my '89 coupe with built in pre-cats. I removed it and the main cat to free up my exhaust flow. The pipe is in excellent condition (stored in a heated basement) with the precats intact. The pipe was removed at 7k miles when the car was less than a year old. PM me if your interested in buying this pipe.

Oct 10, 2008 | 01:00 AM

Master__Shake_

Pro

Joined: Jan 2008

Posts: 584

Likes: 1

From: Near Lockport NY Black 1986 Coupe

Quote:

Originally Posted by Dostovel

Alright, so it's safe they all need to be replaced right? I mean, after 20 years and since the driver's side one is making noise. What do I need to get, and are there any good deals online?

Get a front y-pipe without the pre-cats, they just hinder the exhaust flow. Then get either an OEM replacement or a nice high-flow main cat, depending on if you like the subtle tone of the exhaust or want it a little louder, respectively. The only reason I have my pre-cats is because I deleted my main and pass them off as the OEM cats for inspection. No one has to know they're hollow.