3" pipe from cat to muffler replace
Thread Starter
Joined: Feb 2013
Posts: 153
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From: Tijeras, NM
Car: 89 Black GTA
Engine: 'close to' stock 5.7 but trending>>
Transmission: 700
Axle/Gears: 3.27
3" pipe from cat to muffler replace
89 GTA w/ single catback
I have what I ***think*** is an aftermarket setup from the cat to the single flowmaster, just one 3" pipe. That 3" pipe has some rust thru so It'll need replacing.
Anyone make a replacement for that pipe?
I have what I ***think*** is an aftermarket setup from the cat to the single flowmaster, just one 3" pipe. That 3" pipe has some rust thru so It'll need replacing.
Anyone make a replacement for that pipe?
Supreme Member




Joined: Oct 2004
Posts: 4,526
Likes: 238
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: 3" pipe from cat to muffler replace
This is how my wife asks questions. Honey can you get me the thing in the room?
Take a picture because no one knows if it was modified or what flanges it uses or what aftermarket parts are there. Your best bet is to go to an exhaust shop and get one made.
Take a picture because no one knows if it was modified or what flanges it uses or what aftermarket parts are there. Your best bet is to go to an exhaust shop and get one made.
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Joined: Sep 2009
Posts: 1,591
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From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: 3" pipe from cat to muffler replace
Thread Starter
Joined: Feb 2013
Posts: 153
Likes: 0
From: Tijeras, NM
Car: 89 Black GTA
Engine: 'close to' stock 5.7 but trending>>
Transmission: 700
Axle/Gears: 3.27
Re: 3" pipe from cat to muffler replace

Yeah,youre right. Thats a poor way to ask a question.
I just want to know if theres a "name" for the pipe between the cat and the muffler - 'intermediate' perhaps?
Supreme Member




Joined: Oct 2004
Posts: 4,526
Likes: 238
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: 3" pipe from cat to muffler replace
Re: 3" pipe from cat to muffler replace
I am running into the same problem. You can get a 2.5" inermediate pipe, but not 3".
Walker used to make a 2 piece setup, but apparently unavailable now. Has anyone found a solution to this other than a custom bent one?
Walker used to make a 2 piece setup, but apparently unavailable now. Has anyone found a solution to this other than a custom bent one?
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Supreme Member




Joined: Oct 2004
Posts: 4,526
Likes: 238
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: 3" pipe from cat to muffler replace
You best bet to get a cheap pre bent pipe would be to buy the 3" system from summit
http://www.summitracing.com/parts/su...model/firebird
http://www.summitracing.com/parts/su...model/firebird
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iTrader: (15)
Joined: Oct 2003
Posts: 3,449
Likes: 5
From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Re: 3" pipe from cat to muffler replace
Heattrhob sells the pipe for $60 for each section plus shipping.
You just gotta e mail them.
You just gotta e mail them.
Re: 3" pipe from cat to muffler replace
Supreme Member
iTrader: (15)
Joined: Oct 2003
Posts: 3,449
Likes: 5
From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Re: 3" pipe from cat to muffler replace
Been to every one around here. No one will touch it, need a mandrel machine to make that bend over and around the axle without kinking the 3". I have a little while to weigh my options. May just get one of those summit kits and sell the extra new parts I'll have left over.
Supreme Member
iTrader: (15)
Joined: Oct 2003
Posts: 3,449
Likes: 5
From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Re: 3" pipe from cat to muffler replace
Yep,
Jegs has a pretty cheap catback as well.
I'm getting the hearthrob pipes because I don't want a crossflow muffler, so I will use a different one. No reason to buy a full catback when I won't use the muffler and tail pipes.
Jegs has a pretty cheap catback as well.
I'm getting the hearthrob pipes because I don't want a crossflow muffler, so I will use a different one. No reason to buy a full catback when I won't use the muffler and tail pipes.
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