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04-02-2007, 10:40 PM
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Hummer Professional
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Join Date: Aug 2006
Location: Dallas, TX
Posts: 398
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Need opinions on exhaust changes
When MossH2 was selling everything but the kitchen sink, I bought a bunch of stuff, including ceramic coated Hedman Headers. I contacted a recommended exhaust shop, and they quoted my $390ish for a cat back 3" SS exhaust and $400ish (!!!) to mount the headers and run 3" SS to the cats. He said that the headers are particularly difficult on the right side of the motor.
This seems like a lot of green. Any opinions on this? Thanks!
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2006 Twilight Maroon H2, Procomp 6001 rims, 35" X 12.5 X 17 Xterrain tires, Ram over-the-hood brush guard, Jet Stage I, Warn 9.5 winch and winch bumper, Hedman Headers, K&N Air charger, Lightforce driving lights, a little CHROME for good measure
2006 Victory Red H3 (The Titanic), R.I.P. - It didn't float
1968 Mustang GT convertible
2005 Harley Davidson Hertitage Softail, Stage I, Vance and Hines Big Shot Longs - Sold 
2004 Jaguar S-Type (the wifemobile)
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04-03-2007, 12:03 AM
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Hummer Professional
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Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
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Re: Need opinions on exhaust changes
Find another shop, they are not that hard to install. I have done it on mine and I have a supercharger that covers the right side (Whipple).
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2003 H2 Hummer, Yellow,Polished Whipple Supercharged, Dynatech long tube headers, catback,18\" Ambush w/Toyo MT\'s,lots of goodies!
Y2K Corvette Millennium Yellow Convert/Blk/Blk, B&B headers, B&B Tri-Flo\'s, H-Tech MAG,GMS MAF, RM Racing TwinFlow.
1994 Chev Suburban Blown
1970 Trans Am balanced, blueprinted, ceramic headers, etc.
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04-03-2007, 11:38 AM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: Need opinions on exhaust changes
Captain tell whoever that they can raise front end and remove both front tires. Then quickly remove the front fender inner liners and all is wide open looking them in the face. Remove spark plugs first so they do not break one. One guy on each side and the guy on driver side will finish ahead of the other side if both go at same pace. Remove the skid plates which needs to be done anyway for exhaust R@R. The passenger side header is a little more difficult but, as mentioned not that bad. It is even easier if items mentioned above are removed for clearance but, more so it helps keep guys from crawling around leaning over fenders. It speeds the install up even though it seems it would not.
For $260.00 my perf. exhaust shop ran from my already installed Dynatech stainless header and catback system, twin 3" pipes 1 from each cat to each of 2 super 40 Flowmaster mufflers. Then 2.5" twin pipes out of each Flowmaster muffler back and over axle stopped in stock location. This price included all tubing and 2 Flowmaster mufflers. There was quite a bit of custom bending and making all tubing fit up high above bottom of frame. Reducer had to be made to reduce 3" pipes from cats going into the 2.5" Flowmaster inlet then 2.5" matched up going out Flowmasters up and over axle. I stressed I wanted the system to fit in factory location so they took care to do so.
Oh the 2 super 40 Flowmasters when turned on there edges will fit nicely right where the huge factory muffler was. This way You can get a true dual exhaust system.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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04-03-2007, 03:13 PM
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Hummer Professional
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Join Date: Aug 2006
Location: Dallas, TX
Posts: 398
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Re: Need opinions on exhaust changes
Thanks guys! Your the greatest!
I didn't think it sounded right...
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2006 Twilight Maroon H2, Procomp 6001 rims, 35" X 12.5 X 17 Xterrain tires, Ram over-the-hood brush guard, Jet Stage I, Warn 9.5 winch and winch bumper, Hedman Headers, K&N Air charger, Lightforce driving lights, a little CHROME for good measure
2006 Victory Red H3 (The Titanic), R.I.P. - It didn't float
1968 Mustang GT convertible
2005 Harley Davidson Hertitage Softail, Stage I, Vance and Hines Big Shot Longs - Sold
2004 Jaguar S-Type (the wifemobile)
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