My old 3" exhaust beside my new 4"
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Joined: Jun 2003
Posts: 294
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From: Dayton, OH
Car: 88 Trans Am
Engine: 5.7 TPI
Transmission: 700r4
My old 3" exhaust beside my new 4"
Here are some side-by-side comparisions of my old exhaust setup vs. my new.
Old:
edelbrock TES emissions legal headers into 3" Flowmaster w/ high flow cat. An 80 Series Flowmaster muffler with Hooker tips.
New:
Hooker Super Comp Long Tubes into custom 3" y-pipe into 4" Mufflex to a 4" Spintech Muffler.
New exhaust on left, old on right.
Here are the y pipes...look at the restriction on the passenger side header area of the old y pipe.
And the headers...notice how the Edelbrock ones squeeze down together at the bottom.
And the difference in size of the I Pipes.
Old:
edelbrock TES emissions legal headers into 3" Flowmaster w/ high flow cat. An 80 Series Flowmaster muffler with Hooker tips.
New:
Hooker Super Comp Long Tubes into custom 3" y-pipe into 4" Mufflex to a 4" Spintech Muffler.
New exhaust on left, old on right.
Here are the y pipes...look at the restriction on the passenger side header area of the old y pipe.
And the headers...notice how the Edelbrock ones squeeze down together at the bottom.
And the difference in size of the I Pipes.
Member
Joined: Jan 2003
Posts: 404
Likes: 0
From: Hartland MI
Car: 89 Formula
Engine: 355
Transmission: 700r4
Axle/Gears: 3.73
I was just under my car yesterday and thought about how the edelbrock y-pipe really pinches the incoming pipes at the union, a giant restriction for sure. That new system should really flow.
Joined: Jul 2004
Posts: 769
Likes: 51
From: Zebulon, nc
Car: 1990 GTA/1989 Iroc
Engine: L98/383
Transmission: 700r4/t56 magnum
Axle/Gears: 9"
Correct me if i'm wrong, but that 4 inch setup looks like it belongs on a 4th gen LS1. Is it? and do they interchange?
Thread Starter
Member
Joined: Jun 2003
Posts: 294
Likes: 0
From: Dayton, OH
Car: 88 Trans Am
Engine: 5.7 TPI
Transmission: 700r4
The setup actually was straight off a GTA (it's the elusive 1LE type R)
No...not realy...It was custom fabbed for a GTA. Bought the whole setup second hand.
No...not realy...It was custom fabbed for a GTA. Bought the whole setup second hand.
Joined: Jul 2004
Posts: 769
Likes: 51
From: Zebulon, nc
Car: 1990 GTA/1989 Iroc
Engine: L98/383
Transmission: 700r4/t56 magnum
Axle/Gears: 9"
Originally posted by 4mul8r
The setup actually was straight off a GTA (it's the elusive 1LE type R)
No...not realy...It was custom fabbed for a GTA. Bought the whole setup second hand.
The setup actually was straight off a GTA (it's the elusive 1LE type R)
No...not realy...It was custom fabbed for a GTA. Bought the whole setup second hand.
type R, huh......gotta get me one of them
anyhow cool setup, the y pipe just resembles an LS1 piece.
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