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04-27-2010, 02:51 AM
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Hummer Veteran
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Join Date: Jul 2005
Posts: 80
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Re: muffler
Was given a Flowmaster 50 series big block muffler. Put it on in place of the stock muffler and wasn't happy, much too quiet to fit the profile of the H2. Went with a custom Y-Pipe into a single 5" Dynomax Bullet as I prefer the look and function of the stock set up. Saved roughly 30lbs in the process as my stock muffler weighed in at 36lbs with the bullet being 6lbs. The sound is now incredible! 
__________________
2005 Black LUX
37x13.50R17 Toyo MT
Torsion keys. 2" rear coil spacers
2" wheel spacers
In Tune I2, Air Raid Filter, Air Raid MIT, throttle body bypass, straight pipe exhaust
Cognito UCAs. Kryptonite UCA ball joints. Kryptonite tie rods. Kryptonite death grip Idler. Moog HD pitman.
5.13 gears. E-locker front
Bilstein stabilizer
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04-27-2010, 03:20 AM
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Hummer Professional
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Join Date: May 2006
Location: las vegas
Posts: 301
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Re: muffler
on my 06 i had the flowmaster 70 series and it sounded good but quieter than stock.
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scott j.
2008 h2 sut
2008 escalade
1969 charger
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04-27-2010, 03:38 AM
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Hummer Veteran
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Join Date: Oct 2009
Location: collins,ny
Posts: 90
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Re: muffler
Thanks for all the input,I`ve decided to go with dual 40 series.A local muffler shop will do the work for $325.00.Includes 2 flowmaster 40`s,and the dual tail pipes.
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04-27-2010, 01:34 PM
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Hummer Authority
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Join Date: Jun 2005
Location: Key Largo
Posts: 1,174
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Re: muffler
I was in a friend's H2 at a dealer offroad event three years ago that had Midas glasspacks on it and it sounded sweet and the noise was liveable. (I'm going to miss those Lynch dealer events!) It was definitely louder than my stock H2. He said the entire job cost $180 at a Midas shop and his mpgs were up about 1 mile per gallon. He also stated he had no hassle from the police with them either.
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04-30-2010, 04:52 AM
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Hummer Expert
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Join Date: Jun 2008
Location: Virginia Beach, VA
Posts: 784
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Re: muffler
It's 2.5 in and out?? I just bought a Borla not to long ago and it sounds fantastic!!!
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FRIENDS DON'T LET FRIENDS DRIVE STOCK!!!!
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05-01-2010, 12:45 PM
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Hummer Veteran
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Join Date: Oct 2009
Location: collins,ny
Posts: 90
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Re: muffler
Just had the new exhaust put on.I`m running 2 40 series flowmasters,2.50 in/out.Not loud at all on the inside and just right on the outside....lol but when I "get on it" it`ll sound like farting....lol.Now i`m looking for a pair of "kool" tips to throw on. 
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05-02-2010, 04:41 PM
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Hummer Expert
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Join Date: Jun 2008
Location: Virginia Beach, VA
Posts: 784
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Re: muffler
HAHA Sounds like your enjoying it!! I was looking at the RBP exhaust tips for mine but matte black for my setup maybe you'll like the chrome ones!! After all we are ROLLING BIG POWER!!!
__________________
FRIENDS DON'T LET FRIENDS DRIVE STOCK!!!!
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05-06-2010, 07:02 PM
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Hummer Veteran
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Join Date: Apr 2010
Posts: 35
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Re: muffler
Quote:
Originally Posted by tsdrummerboy
Just had the new exhaust put on.I`m running 2 40 series flowmasters,2.50 in/out.Not loud at all on the inside and just right on the outside....lol but when I "get on it" it`ll sound like farting....lol.Now i`m looking for a pair of "kool" tips to throw on. 
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How about a video for some sound 
__________________
'07 SUT w/LUX. 37" ProComp Xtreme Mud Terrains - Flowmaster 40 Series w/ dual tips - Delta 10X Light Bar - 6,000K's - E&G Fender Flares & Splash Shields - Guard & Some lights -
Coming Soon: Fabtech 6"
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05-07-2010, 03:39 PM
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Hummer Expert
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Join Date: Sep 2007
Location: Mason, OH
Posts: 779
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Re: muffler
Quote:
Originally Posted by Stellar
Was given a Flowmaster 50 series big block muffler. Put it on in place of the stock muffler and wasn't happy, much too quiet to fit the profile of the H2. Went with a custom Y-Pipe into a single 5" Dynomax Bullet as I prefer the look and function of the stock set up. Saved roughly 30lbs in the process as my stock muffler weighed in at 36lbs with the bullet being 6lbs. The sound is now incredible! 
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Can you post pics and vid/sound of this? I am with you on the stock set up. If you truly offroad your truck the stock exhaust tail pipe set up is the best. One tail pipe will have more pressure and keep water out better at deep crossings. Not to mention the way the tail pipe is cut so you cannot crush it closed when coming down off of a huge ledge. The H3 guys are constantly pinching their tail pipes.
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05-07-2010, 09:15 PM
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Hummer Veteran
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Join Date: Jul 2005
Posts: 80
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Re: muffler
Quote:
Originally Posted by HumminNBoatin'
Can you post pics and vid/sound of this? I am with you on the stock set up. If you truly offroad your truck the stock exhaust tail pipe set up is the best. One tail pipe will have more pressure and keep water out better at deep crossings. Not to mention the way the tail pipe is cut so you cannot crush it closed when coming down off of a huge ledge. The H3 guys are constantly pinching their tail pipes.
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Ill post some pics when I get back into town on Monday. Wish I had a way to create a vid. Total price for my set up was $150 which included labor, the straight through muffler, and custom Y-Pipe at the local Meineke shop. Hit all of the undercarriage with undercoating, but even before there was little to no interior resonance. The outside sound is incredible! 
__________________
2005 Black LUX
37x13.50R17 Toyo MT
Torsion keys. 2" rear coil spacers
2" wheel spacers
In Tune I2, Air Raid Filter, Air Raid MIT, throttle body bypass, straight pipe exhaust
Cognito UCAs. Kryptonite UCA ball joints. Kryptonite tie rods. Kryptonite death grip Idler. Moog HD pitman.
5.13 gears. E-locker front
Bilstein stabilizer
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