Good Buy
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Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
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Joined: Dec 2003
Posts: 671
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From: North Olmsted, OH
Car: 1984 Pontiac Trans Am WS6
Engine: H.O. 305 5.0L;L69
Transmission: T-5; Axle Ratio 3.73
Heard good and bad from catco owners...but they are cheap so that is a +. I went with a carsound cat from magnaflow and I really like it. Try a search, I am sure you will find more info.
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
I know, I've done the searches... I was just wondering about the particular unit that I bought...
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Somehow that doesn't look like 3" inlet/outlet to me. Is that what you got?
Having purchased one of those units (Catco 3" inlet/outlet universal), I regret it and wouldn't recommend it. If you are going with 2055 headers, get a Catco 9118 direct-fit for '86-'90 TPI single cat application.
Having purchased one of those units (Catco 3" inlet/outlet universal), I regret it and wouldn't recommend it. If you are going with 2055 headers, get a Catco 9118 direct-fit for '86-'90 TPI single cat application.
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
Yeah, I purchased that one on ebay about an hour ago. It's already paid for through paypal. I read about some other people that had no problems with them so I figured that it was worth a shot.
What kinds of problems did you run into?
What kinds of problems did you run into?
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Joined: Apr 2003
Posts: 3,563
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
Originally posted by five7kid
Somehow that doesn't look like 3" inlet/outlet to me. Is that what you got?
Having purchased one of those units (Catco 3" inlet/outlet universal), I regret it and wouldn't recommend it. If you are going with 2055 headers, get a Catco 9118 direct-fit for '86-'90 TPI single cat application.
Somehow that doesn't look like 3" inlet/outlet to me. Is that what you got?
Having purchased one of those units (Catco 3" inlet/outlet universal), I regret it and wouldn't recommend it. If you are going with 2055 headers, get a Catco 9118 direct-fit for '86-'90 TPI single cat application.
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Joined: Feb 2003
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From: Buckley AFB, CO / Crestview, FL
Car: 83 Z-28
Engine: LG4
Transmission: 700R4
Axle/Gears: 02 WS6 Rear w/3:42
Good deal. I got my carsound cat on ebay for the same price. I have had no problems with it. I just took it down to the shop for them to install and weld it that way I dont have to mess around with trying to put flanges on it and stuff.
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Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The direct fit will "fit directly". The universal will require fabrication to get it into the system. It will fit onto the y-pipe, but it won't reach to the cat-back.
Take it to a shop to get it installed, and you'll likely spend more than what you saved getting the universal vs. the direct fit. Unless you "know" somebody, of course.
I'd still take a direct fit over the typical hack fab job you get from a muffler shop.
Take it to a shop to get it installed, and you'll likely spend more than what you saved getting the universal vs. the direct fit. Unless you "know" somebody, of course.
I'd still take a direct fit over the typical hack fab job you get from a muffler shop.
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
In that case, I may just have to put it back up on ebay and buy a direct fit instead. I refuse to be beaten by something so dumb.
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
I posted it in the classified section if anyone is interested in it. I will sell it for less than they guy sold it to me for.
If I don't get a bite there, I will put it back on ebay.
If I don't get a bite there, I will put it back on ebay.
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