Best headers for the dual cat set up?
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Junior Member
Joined: Jul 2010
Posts: 49
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From: Canada
Car: 1990 Trans Am GTA
Engine: 383 HSR Profiler heads
Transmission: 700R4
Best headers for the dual cat set up?
I want to get a set of headers for my 90 trans am but with the dual cat set up its seems they are hard to find. The previous owner installed a very nice high flow stainless cat set up so i would like to keep them. I see Edelbrock makes a set, but does anyone know or tried any other ones?
Thanks!
Thanks!
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Best headers for the dual cat set up?
How about these?
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 49
Likes: 0
From: Canada
Car: 1990 Trans Am GTA
Engine: 383 HSR Profiler heads
Transmission: 700R4
Re: Best headers for the dual cat set up?
[quote=Dyno Don;4798773]How about these?
Wow nice! Where can i get a set?
Wow nice! Where can i get a set?
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Joined: Feb 2005
Posts: 2,642
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From: Pleasant Grove, Utah
Car: 1993 GMC Typhoon
Engine: 4.3 Turbo
Transmission: 4L60
Axle/Gears: 3.42
Re: Best headers for the dual cat set up?
you get them from "the man" himself... he who posted those.. "Dyno Don". the only 1 3/4" headers on the market, with ball and socket 3" flanges, 2 1/2" dual pipe. Send him a PM.
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Best headers for the dual cat set up?
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Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: Best headers for the dual cat set up?
Just a heads up but at the last dyno session there were cars in the 390rwhp mark using Dyno Dons headers. I expect to see over 400rwhp this year.
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Joined: Oct 2006
Posts: 3,041
Likes: 8
From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Best headers for the dual cat set up?
I run Edelbrock headers with dual cats and a 3" SLP exhaust. Works great so far.
Dyno Don headers have great reviews here...will add them when I swap the cam and heads.
Dyno Don headers have great reviews here...will add them when I swap the cam and heads.
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Joined: Nov 2006
Posts: 148
Likes: 1
From: San Angelo, Texas
Car: 89 Iroc
Engine: 350
Transmission: T56
Axle/Gears: 3.70 9bolt
Re: Best headers for the dual cat set up?
One more vote for Don's headers. Quality is top notch and everyone that looks over my car is amazed that I found a set with the 1 3/4" runners. No numbers yet but with my HSR, Don's headers, T-56 and 370 gears on a stock motor its hard to keep it planted and straight until i hit 3rd in street tires.
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Joined: May 2009
Posts: 3,371
Likes: 2
From: Delaware
Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: Best headers for the dual cat set up?
Edelbrock TES dual ypipe headers. They make some for single ypipe too.
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