good v6 exhaust
Joined: Sep 2004
Posts: 2,777
Likes: 7
From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: good v6 exhaust
Well, I'll tell you, this is my suggestion and two cents.
First, replace the manifolds and y pipe. Your Y-pipe is a really restrictive piece of garbage. If you can, buy the pacesetter headers kit with y-pipe and start there. If the headers are above your budget, then keep your manifolds and have a custom y-pipe made, preferably using a flowmaster y-transition pipe.
Next, if you are keeping your engine stock for the most part, use parts made for a factory TPI V8 car. If you are on a budget, just go to the parts store and get the entire cat back exhaust for an IROC or a Trans Am with a vin code 8 engine. I even use used parts for my V6 stuff because I'm on a budget.
If you have some money to spend, I would buy a high flow cat and a cat back system for the same Trans Am. A stock V6 will improve performance using the V8 setup, and all I had to do was have the exhaust shop make a new transition from my Y-pipe to the V8 cat. Everything else I did myself in the driveway.
Good luck!!
First, replace the manifolds and y pipe. Your Y-pipe is a really restrictive piece of garbage. If you can, buy the pacesetter headers kit with y-pipe and start there. If the headers are above your budget, then keep your manifolds and have a custom y-pipe made, preferably using a flowmaster y-transition pipe.
Next, if you are keeping your engine stock for the most part, use parts made for a factory TPI V8 car. If you are on a budget, just go to the parts store and get the entire cat back exhaust for an IROC or a Trans Am with a vin code 8 engine. I even use used parts for my V6 stuff because I'm on a budget.
If you have some money to spend, I would buy a high flow cat and a cat back system for the same Trans Am. A stock V6 will improve performance using the V8 setup, and all I had to do was have the exhaust shop make a new transition from my Y-pipe to the V8 cat. Everything else I did myself in the driveway.
Good luck!!
Supreme Member
Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: good v6 exhaust
My friends ran a 2.5inch dynomax on his 3.1L sounded really good,
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