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09-24-2010, 06:02 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: Header
JTR makes them for both the 3.5 and 3.7 engines...
Specify what you want. The one pictured only had one bung hole for for the sensor. That is for the 3.5 engine. I belive the 3.7 has 2 holes.
They would know. Contact them to be certain...
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"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
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2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
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10-30-2010, 01:06 PM
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Hummer Veteran
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Join Date: Nov 2008
Location: Connecticut
Posts: 42
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Re: Header
Did you ever call them to find out if it would fit the H3s?
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11-04-2010, 12:18 AM
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Hummer Authority
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Join Date: Aug 2006
Location: Oregon
Posts: 1,055
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Re: Header
Why is it soo much cheaper than the one made for the H3?
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06 Slate Blue, manual, Adv. Pkg., Monsoon, sunroof, brushguard, rock rails, ucp, tow pkg, K&N intake, underhood air compressor, Warn Lights, Spider rear Diff. cover
Black Sheep Hummer Squadron
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11-05-2010, 12:51 PM
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Elcova Newbie
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Join Date: Jun 2010
Posts: 4
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Re: Header
I sent them an e-mail and they assured me that it would fit the H3, I ordered it and have it in my shop but have not installed it yet as I am working out of state until the end of the year. I will post how it works out when I get time to install the header.
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11-05-2010, 11:38 PM
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Hummer Authority
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Join Date: Aug 2006
Location: Oregon
Posts: 1,055
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Re: Header
Can't wait to see the results! That's great that there is a less expensive option out there for headers. The other one seemed way over priced.
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06 Slate Blue, manual, Adv. Pkg., Monsoon, sunroof, brushguard, rock rails, ucp, tow pkg, K&N intake, underhood air compressor, Warn Lights, Spider rear Diff. cover
Black Sheep Hummer Squadron
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01-11-2011, 08:05 PM
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Elcova Newbie
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Join Date: Jun 2010
Posts: 4
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Re: Header
Just a quick update for those interested, I am still out of state and have been extended til the end of February. I am as anxious to get the header installed and test the results as anyone. Sorry I don't have better news yet. I WILL UPDATE WHEN I FINALLY GET IT INSTALLED.
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07-10-2011, 04:41 AM
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Elcova Newbie
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Join Date: Jun 2010
Posts: 4
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Re: Header
It took a while but I finally put the header on the H3 July 3rd. The work went fairly smoothly, the hardest part is getting the factory header with its integral catalytic converter off the engine and out of the engine compartment. Make sure you have some type of hoist to handle the lift on the header while you twist and turn the manifold to get it out.
The header slipped right in and bolted up with no problem, I ordered the header for the 3.7 and it does have the two threaded holes for the two sensors. The top sensor cable barely reaches the hole but will reach, make sure you tie the cable away from the header so it doesn?t burn.
Once I got the header all bolted up to the engine and the intake back on I started to connect the bottom end and found that the header ends with about a 15 degree down angle and the stock exhaust system bolted in at 90 degrees to the integral catalytic converter. I slipped in one bolt and off to the muffler shop to get the exhaust pipe cut off and re-welded at the correct angle. Tim did a great job connecting the header to the stock exhaust pipe and it only cost me $30.00.
I first impression is that the truck seems to have a little more pep and it sounds great, I changed the cat back exhaust system previously. I haven?t driven the truck enough to check the fuel mileage and will probably get the PCM module re-programmed before I get a chance to check the mileage.
I will be happy to try and answer any questions you may have. Hope this helps!
Last edited by petreek : 07-10-2011 at 04:48 AM.
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07-18-2011, 12:54 PM
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Elcova Newbie
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Join Date: Jul 2011
Posts: 2
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Re: Header
wowww that great  |
07-19-2011, 09:17 PM
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Elcova Newbie
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Join Date: Jul 2011
Posts: 2
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Re: Header
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07-21-2011, 01:20 AM
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Hummer Veteran
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Join Date: Apr 2007
Posts: 221
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Re: Header
pictures or it didn't happen. 
congrats! |
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