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| 07.5-2010 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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10-20-2007, 05:05 PM
| eBay Motors #1 (permalink) |
| Senior Member  Join Date: Oct 2007
Posts: 131
| MBRP Cat-Back exhaust LMM So this basically deletes your muffler with better bends? What is the difference between filter back and cat-back? Will this create any problems on an otherwise stone stock LMM? What will it sound like? Benefits in MPG as they claim? eBay Motors: MBRP 4" exhaust 2007.5 - 2008 GM Duramax diesel LMM (item 110179811452 end time Oct-21-07 10:11:05 PDT) 
__________________  '07.5 GMC Sierra 2500 4x4 SLE 1. LMM, CC, 6' Box.  |
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10-20-2007, 07:01 PM
| eBay Motors #2 (permalink) |
| Administrator    Join Date: Aug 2005 Location: Aviano Italy
Posts: 8,368
 | This one is only a filter back system. It is in red near the bottom of the page. I know some people have removed their DPF, but I have read some guys have had problems while others have not. A filter back and cat back is just as it sounds. I don't know if any company has come out with a cat back for the LMM. Once you start removing the emissions stuff on the truck it gets into a gray area if the dealer will still warranty it or at least give you a hard time about removing that stuff.
__________________ SOLD  2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7 4" turbo back MBRP exhaust, Cognito UCAs & HD tierods TST Powermax Programmer, Diablosport Predator 305/70-16 BFG T/A KOs on Eagle Alloys Series 187 Clifford remote start. High Idle, Bilstein 5100s, 1.5" lift blocks CAT fuel filter w/ nicktane adapter Magnum Force Stage 2 intake with AMSOIL filter Racor 2 Micron pre-OEM with heater & water sep Lightforce 140s from Madjackracing  http://WWW.ATPTRUCKS.COM/  |
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10-20-2007, 07:47 PM
| eBay Motors #3 (permalink) |
| Duramax Forum Supporter   Join Date: Sep 2007 Location: santa barbara
Posts: 276
| i have heard of people trying to create a dpf delete tune with efi live dont know if it will work but there has got to be a way around this dpf
__________________ Cummin Stroke This <------ TRUCK--06 Duramax LBZ PERFORMANCE MODS--SnB CAI, Custom 4inch Exhaust, EFIlive custome tuning by myself  EXTERIOR--White, 4x4, CC, SB, 6inch RCD lift with 35inch BFG KM2 MUDS, painted to match door handles, Cowl Induction Hood, Billet Grill, limo tinted windows with 35% on the winshield, Train Horns INTERIOR--LT package, EGT and Boost Pillar Mounted Guages, 3 10inch alumapro subs with custom box, 2000 watt amp, and 2 farat capacitor, cobra radar detector, aftermarket pedals SOCAL BLACK SMOKE MEMBER#71 |
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10-20-2007, 09:43 PM
| eBay Motors #4 (permalink) |
| Senior Member Join Date: Oct 2007
Posts: 131
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10-21-2007, 04:03 AM
| eBay Motors #5 (permalink) |
| Administrator Join Date: Aug 2005 Location: Aviano Italy
Posts: 8,368
| OK, but you still have the DPF. That is far more restrictive than the muffler. The best reason to get this kit is to have the exhaust exit on the side instead of almost straight back.
__________________ SOLD 2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7 4" turbo back MBRP exhaust, Cognito UCAs & HD tierods TST Powermax Programmer, Diablosport Predator 305/70-16 BFG T/A KOs on Eagle Alloys Series 187 Clifford remote start. High Idle, Bilstein 5100s, 1.5" lift blocks CAT fuel filter w/ nicktane adapter Magnum Force Stage 2 intake with AMSOIL filter Racor 2 Micron pre-OEM with heater & water sep Lightforce 140s from Madjackracing http://WWW.ATPTRUCKS.COM/ |
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