size of pipes on GTA
Thread Starter
Joined: Jan 2003
Posts: 642
Likes: 0
From: Northern New Jersey
Car: 1988 Trans am GTA
Engine: corvette 350 swap
Transmission: t-5 swap
Axle/Gears: 3.27:1 borg warner 9-bolt w/ PBRs
size of pipes on GTA
does anyone know the size of exhaust pipping used on an 1988 GTA from the factory?
Thread Starter
Joined: Jan 2003
Posts: 642
Likes: 0
From: Northern New Jersey
Car: 1988 Trans am GTA
Engine: corvette 350 swap
Transmission: t-5 swap
Axle/Gears: 3.27:1 borg warner 9-bolt w/ PBRs
wow, 2 1/4"?? they look way bigger than that, especially the pipes coming into and leaving the cat. oh well, looks can me deceiving. lol
Supreme Member
Joined: Apr 2003
Posts: 1,265
Likes: 2
From: Hill AFB, Utah
Car: 1988 Trans Am GTA Notchback
Engine: 305ci, 5.0L, TPI, HO
Transmission: Borg Warner T5 5-Speed
Axle/Gears: 9-Bolt Positraction Rear w/3.45 Grs
They suck sound wise! I will probably add a cut-out.
TGO Supporter
Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
They do look bigger, but the pipe is REALLY thick compared to a typical exhaust pipe... the one on my '83 HO is anyway.
Supreme Member
Joined: Apr 2003
Posts: 1,265
Likes: 2
From: Hill AFB, Utah
Car: 1988 Trans Am GTA Notchback
Engine: 305ci, 5.0L, TPI, HO
Transmission: Borg Warner T5 5-Speed
Axle/Gears: 9-Bolt Positraction Rear w/3.45 Grs
Hell I still have the stock Cat, and it looks like someone took a hammer to it!
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