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10-01-2004, 12:49 AM
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Join Date: Feb 2004
Location: Heathrow, FL
Posts: 35
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I have a 03 that I have installed a AFE cold air intake, Magnaflow cat back and the Predator tune. Will headers give me anymore power I can feel? I have read that there are some bolt on types, can those be installed by the average home wrencher in the garage? If I wanted to pay to have it done what labor time would I be looking at? I was thinking of the Edelbrock shortys?
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10-01-2004, 12:49 AM
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Join Date: Feb 2004
Location: Heathrow, FL
Posts: 35
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I have a 03 that I have installed a AFE cold air intake, Magnaflow cat back and the Predator tune. Will headers give me anymore power I can feel? I have read that there are some bolt on types, can those be installed by the average home wrencher in the garage? If I wanted to pay to have it done what labor time would I be looking at? I was thinking of the Edelbrock shortys?
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10-01-2004, 12:49 AM
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Join Date: Feb 2004
Location: Heathrow, FL
Posts: 35
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I have a 03 that I have installed a AFE cold air intake, Magnaflow cat back and the Predator tune. Will headers give me anymore power I can feel? I have read that there are some bolt on types, can those be installed by the average home wrencher in the garage? If I wanted to pay to have it done what labor time would I be looking at? I was thinking of the Edelbrock shortys?
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10-01-2004, 01:33 AM
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Hummer Expert
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Join Date: Jan 2004
Location: Runnin with NASCAR, sometimes Central NJ
Posts: 932
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10-04-2004, 08:23 AM
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Join Date: Jul 2004
Location: Anchorage
Posts: 39
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Can a Novice install these?
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10-14-2004, 12:46 AM
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Hummer Expert
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Join Date: Jan 2004
Location: Runnin with NASCAR, sometimes Central NJ
Posts: 932
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Sure you can---it is all bolt on stuff with instructions. A pro will install the headers in four hours and the exhaust in two----so figure eight hours of his/her time---after all he is not going to start anything else that day!
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10-17-2004, 04:43 AM
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Hummer Veteran
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Join Date: Apr 2004
Location: HB SoCal
Posts: 39
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I've got the long headers that bolt up to the cats and I received a noticable hp improvement. I'm told the short headers sound louder than stock, but really doesn't provide horsepower improvement. My headers required some welding by the installer. From what I can remember it only took them two hours to R/R. I installed the cat-back system and it took 2 hours at the most. No need to lift the vehicle you just need a hacksaw to cut the tubing behind the rear axle and the willingness to get a little dirty.
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04 H2 Black LUX, Air suspension, NAV, Basanni Cat-back exhaust & full ceramic headers, Airaid Intake, Audiovox headrest DVD system
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10-17-2004, 11:38 AM
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Hummer Authority
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Join Date: Nov 2002
Location: Wherever I Go, There I Am!
Posts: 1,216
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10-19-2004, 03:17 AM
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Hummer Veteran
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Join Date: Apr 2004
Location: HB SoCal
Posts: 39
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Big Z,
Great writeup. Well worth the reading.
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04 H2 Black LUX, Air suspension, NAV, Basanni Cat-back exhaust & full ceramic headers, Airaid Intake, Audiovox headrest DVD system
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