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04-12-2006, 12:18 AM
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Join Date: Mar 2004
Location: The clearing at the end of the path
Posts: 71
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Talking to another H2 owner at a gas station. He mentioned that he had flowmaster exhausts put on his H2 and it increased his gas mileage to around 16mpg. I hate to raise the bull**** flag without being sure, so since I don't know if this anywhere near true, I figured I would pose this question to my peeps here on this forum. So is this crap or what?
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04-12-2006, 12:44 AM
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Hummer Professional
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Join Date: Dec 2004
Location: 2 clicks north of Houston
Posts: 412
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Maybe he did the Flowmaster and egg mod. To do this mod, you need 2 items. The Flowmaster exhaust kit and an egg. Here it is:
1-Install Flowmaster exhaust kit EXACTLY as stated in the instructions.
2-Install one (1) egg between the gas peddle and your shoe. Careful not to let the egg slip down.
3-Drive your new 16 MPG HUMMER!
Other than that, dude is running ricer mod math. If he added the Flowmaster sticker, it was worth another 8HP.
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Had-94,96,98,99 Cobra Stang,99 Navigator,03 Expy, 05 H2
Have-08 Titan C/C,06 GCSRT-425FTLB & AWD, other junk..
Want-08 Viper, 06 M5 
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04-12-2006, 12:52 AM
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Hummer Expert
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Join Date: Jan 2006
Location: chicago
Posts: 724
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2003 H2 Lux Series. Murdered Out! 20x10 Eagle Wrapped with Nitto Mud Grapplers 35x12.5x20 Full tint including windshield, full LED interior, K&N Intake, HID Headlights & Fogs, Plasti Dip Skid plate & front/back Lower Bumpers, List goes on!
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04-12-2006, 03:25 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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What was his prev. mileage, 14.4? possible to increase 1.5 with A good flowing exhaust. Did he perform the mod in spring when the temps are rising then definatly he will increase his mileage. Lots of varibles. I would say anywhere from 1-3 mpg could be gained with A real good exhaust mod.
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
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04-12-2006, 10:08 AM
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Hummer Professional
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Join Date: Aug 2005
Posts: 258
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I'm very happy with my modified catalyzer.
And obtained a 3 mpg!!
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04-12-2006, 05:33 PM
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Hummer Guru
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Join Date: Nov 2004
Location: Winnipeg, Manitoba - Canada
Posts: 2,726
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Ernie, Drive it like ya stole it...10.2 MPG 
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BLACK \'04 H2 LUX
BLACK \'07 ESCALADE
I have BLING & am PROUD OF IT!
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04-13-2006, 01:06 AM
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Hummer Veteran
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Join Date: May 2004
Location: Lighthouse Point Florida
Posts: 175
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egg,mods,cold fusion the Hummer will never get 16 mpg. 11.5 and a smile at every gas station. 
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2004 Lux with 6 inch Fabtech with tie rods, 38 inch MT's, 4:88 gears, and some minor engine tweaks.
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04-14-2006, 01:43 PM
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Join Date: Mar 2004
Location: The clearing at the end of the path
Posts: 71
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Heh, 10.2 is what I am rolling with right now. Are you guys sure I can't install a Flux Capacitor and a new Jigglin' pin to help? |
04-14-2006, 04:22 PM
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Hummer Veteran
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Join Date: Feb 2006
Location: In a box by the lake.
Posts: 99
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I found the trick to great gas mileage with my Hummer. I let it sit in the garage more, but then I do drive I have a smile with every drop of gas it takes! But I'm thinking of a Magnaflow exhaust and a Volant air cleaner kit. I'm not shooting for more mileage, Just cooler sound. I knew it was a gas hog than I bought it but it's one of the funist truck to drive.
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2006 H2, Black with bling!!
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04-14-2006, 04:46 PM
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Hummer Guru
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Join Date: Nov 2004
Location: Winnipeg, Manitoba - Canada
Posts: 2,726
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Quote:
Originally posted by NSANE:
I'm thinking of a Magnaflow exhaust and a Volant air cleaner kit. I'm not shotting for more mileage, Just cooler sound. I knew it was a gas hog than I bought it but it's one of the funist truck to drive.
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That's exactly what I have
The Volant cold air intake makes the truck SO MUCH more responsive and the Magnaflow has a REAL AWESOME throathy growl. Yo definately WON'T get better mileage, went from 11.4 MPG to 10.2 MPG
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BLACK \'04 H2 LUX
BLACK \'07 ESCALADE
I have BLING & am PROUD OF IT!
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