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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 11-23-2009, 05:24 AM
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Default Headers....

So, I am getting ready to have the ride's exhaust done from front to rear. I am probably goin to end up doing it in sections at a time due to cost, so I have a little bit of time to decide a good header.

I am going to dual pipe it out the back with a flomaster on each pipe, so hopefully this will paint a picture for the pros, any suggestions on what headers I should get? Looking for professional, experienced responses here boys... don't want to screw the ride up and make it sound like garbage.
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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  #2  
Old 11-23-2009, 08:31 AM
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Default Re: Headers....

What I run and will run on any other Hummer I own you could maybe say any brand I drive is as follows:

Dynatech stainless long kneck headers
Dynatech stainless catback system
Dual pipe running off catbacks also running crossover pipes
Next I would use 2 Flowmaster super 40's tied in one in each pipe runs. The 40's fit standing side by side in the spot where OEM muffler would be.
Lastly I then run tailpipe over axle right where the factory tailpipe go over axle and stop them up high right at same level of factory so as not to interfer with off road.

I make these recomendations because my performance exhaust shop helped me design exhaust then they built it. It has been on my rig for 4 years.

TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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Old 11-24-2009, 02:56 AM
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Default Re: Headers....

Thanks, this is very thorough. Would it be possible for you to post a pic for me of what this looks like underneath your ride? (the exhaust part) The group I have doing my exhaust will be custom building the entire exhaust besides the cats, mufflers, and headers, so I want to see where they ran the pipes on yours, hopefully get an idea of how it was done professionally in case my guys haven't done a Hummer before...
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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Old 11-24-2009, 05:02 AM
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Default Re: Headers....

My guy just followed the stock route. They run down passengers side of rig.
It would be tough to get pics with Dragon having it apart doing upgrades etc.
There is plenty of room for 2- 3" pipes to run in stock location but go down to 2- 2 1/2" pipes to go over rear axle. Stop tailpipes side by side in stock end pipe location.
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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