question about my exhaust on my 89'GTA
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Joined: Jul 2010
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From: Goodland, IN
Car: 1992 Pontiac Firebird Convertible
Engine: 5.0 TBI
Transmission: 700R4
Axle/Gears: 2.73
question about my exhaust on my 89'GTA
First and foremost I've ready the stickies but my car has the dual cats that were cut out and piping were welded in its place. Now the piping looks to be around 2-3/4"-3" in diameter. But I'm looking for headers and was wondering if any headers will bolt up to this y pipe? Thanks guys in advance.
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Joined: Aug 2012
Posts: 155
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From: Fort Wayne, Indiana
Car: 1989 Firebird Trans Am
Engine: 355
Transmission: T56
Re: question about my exhaust on my 89'GTA
Now I could be wrong, but I don't believe so. They make "kits" that have the y pipe included with the correct flanges to bolt up to the headers.
Joined: Sep 2004
Posts: 5,906
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From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
Re: question about my exhaust on my 89'GTA
I am not aware of any aftermarket headers that come with Y-pipes that will mate to the dual cat setup. Most are single 3" Ys.
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