Stainless Works Long Tube Exhaust Headers 2004-2006 Pontiac GTO

Stainless Works Long Tube Exhaust Headers 2004-2006 Pontiac GTO

Item Code: GT5005

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Product Description


Stainless Works Long Tube Headers feature 32 inch long, equal length, 1 3/4 inch primary tubes, CNC laser cut 3/8 inch flanges, 3 inch collectors and also includes 3 inch pipes or catalytic converters to mate to the factory 2 bolt flanges.

The 1.75 inch diameter primary tubes are specifically designed to provide the best balance between low end torque and high end power; just the right size to allow for adequate exhaust-gas velocity at low RPMs which helps scavenge the exhaust port efficiently while being large enough to move huge volumes of air at high RPMs, providing serious horsepower improvements at the top end.

Premium ceramic coating is available but will delay your order by 2-3 weeks from the date you place the order. Please ask us if you want this quoted.

Installation requires dropping the steering rack which simple to do. Once the rack is out of the way, installation is pretty painless. Sold with either with or without high flow catalytic converters, either option is a bolt on solution requiring no welding at all. Both options bolt up to the factory two bolt flange so these headers will work with the stock exhaust or any of our aftermarket cat-back exhaust systems. Customers have reported up to a 40hp gain with these long tube headers over the stock exhaust manifolds. Includes O2 sensor extensions required for installation.


  • 2004 2005 2006 Pontiac GTO (NOT CARB CERTIFIED – FOR OFF ROAD USE ONLY)

Installation Difficulty

Installation Difficulty 4 View Installation Instructions


Average Customer Review 5 out of 55 out of 55 out of 55 out of 55 out of 5 () 2 Reviews
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4 out of 54 out of 54 out of 54 out of 54 out of 5 Great products, 7.1.2009
Reviewer: David T (Altona, MB)
Everything worked really well and it sounds amazing, easy to install, one problem that I did have was one of the pipes was not bent open enough so I was not able to slide it together so it gave me problems so I had to cut the X pipe off a bit so that the tips didn't come out so far, other than that great product!!!

5 out of 55 out of 55 out of 55 out of 55 out of 5 long tube w/random cats spend the $ u will be happy!!, 10.5.2007
Reviewer: Ken A (Rio Rancho, NM)
Clear instructions, not hard to complete dropping rack the hardest part. A real no brainer fit and finish ex!!! Exhaust note u will not believe w/Borla !! Would recommend to do on a lift but it can be done on the floor with stands, just easier on a lift. Took about two hrs to do the whole exhaust!! w/two people on a lift. Everything fit perfect!! 5 thumbs up! Tks PFYC.