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Old 08-21-2012, 02:09 AM
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Default Re: H2 OBX Long Tube Header w/ High Flow Cat Install With Pictures

Last and the most costly mistake I made- plug wires.

17) Hook up your plug wires. On the driver side the middle two wires will route in a way that they not only touch the header, they push against the header. Now, this may be a 'no sh*t sherlock' type of deal, but not for me. Since these wires were touching the pipes I wrapped them with the plastic heat shield. I have no idea what I was thinking, but I did it.. ok? It's done...lol. Learn from my mistake... or don't and treat yourself to a new set of spark plug wires.

18) Go to your auto parts store and get some heat tape. I got DEI brand. The heat tape was good. Didn't burn, mark up etc.... BUT it was letting heat through to the plug wire and that was making the plug boot at the coil pack to hot to touch. This is probably OK and you could call it done. I wanted to get a little more protection so I got some DEI wire/boot protectors. This keeps temps at the coil pack plug about 140*, 40* hotter than the other coil pack plugs. It also will prevent rubbing of the wire on the pipe. Another note... don't waste your money on header wrap just to wrap that one problem section. I did... and it turns out if you wrap just one section of the pipe it actually gets hotter. My header pipes are about 250* everywhere but where the header wrap is. There... it's 500*. It's coming off after I'm done with this wright up. The heat tape and boot/wire protector is plenty.

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This is what you have to deal with....

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This is what happens if you do it wrong

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I double wrapped, 2 layers, of the below pictured heat shield tape

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Installed with just heat tape

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Pic of the finished product. The section of header wrap, as mentioned, is coming off.

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Products I used
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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 : 08-21-2012 at 02:17 AM.
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