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H2 OBX Long Tube Header w/ High Flow Cat Install With Pictures
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08-20-2012, 07:09 AM
pdxrealtor
Hummer Expert
Join Date: Feb 2008
Location: Portland, OR
Posts: 948
Re: H2 OBX Long Tube Header w/ High Flow Cat Install With Pictures
6)Take your skid plate off, and your brush guard... the one below the tranny pan.
7) Remove your O2 sensors. The only one I had to unplug was pass. side front. The rest were easily tucked out of harms way.
8) Once all your header bolts are loose you're onto the underside of the truck to remove the pipes from cat forward (if you got the high flow cat kit, which I did). There's two ways to do this. Cut it out, or unbolt everything nice and neat. Why you'd want to do the second way is beyond me. I grabbed my sawzall and started cutting. I did save 3 or so inches on each side of the cat so I can sell them. They only have 50k on them.
TIP- leave one header bolt partly bolted in, that way the headers don't fall to the ground when you remove the under car pipes. This advice is all based on the fact that you're doing yourself a huge favor and cutting these b*tches out...
The headers will come out of the bottom. If you have any height at all (jack stands), nothing goes on under the hood. It's all from the wheel well and under the car.
See my cut points in these pics, and the entire system removed shows the cut points as well.
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2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
Last edited by pdxrealtor : 08-20-2012 at
07:14 AM
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