07.5+ LMM Duramax PowertrainDiscussion 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
Yah, I'm hoping someone out there is able to let me know if they have a 5" turbo back for an LMM. And if it will fit without much trouble?
ianburger179 I'm pretty sure you have to use a tuner to turn off the dtc's if you take the dpf off. I don't know of any exhaust that will fool the sensors or ecm.
__________________ 07.5 LMM
4 inch lift, larger wheels and tires.
EFI Live (learning slowly)
Edge Insight Digital Gauge
5" MKO exhaust
Hey ar077 is that on an LMM? If so what brand and where did you get it? Thanks.
Sorry, Dude, but my truck is an '06 LBZ. The exhaust is MBRP and it went in with no interference or mods required (had it professionally done and the job is a work of art). Based on my experience I would say that if MBRP makes a 5" turbo-back specifically for LMMs then you can go to the bank with that.
__________________ 2006 LBZ Sierra 2500HD SLT Ext Cab SB 4x4 (Stealth Gray, Leather, Sunroof)
- Banks Techni-Cooler intercooler / BD exhaust manifold / Airaid / Fluidampr
- MBRP 5" turbo-back exhaust w/Magnaflow 5" Center Spun cat
- ATS Five-Star Torque Converter / Transgo Jr
- Superchips / Kennedy Diesel LBZ Boost Stick
- FS-2500 oil bypass filter system / Lubrication Specialist auxiliary fuel filter
- Bilsteins / Super Diesel tie rod sleeves / Cognito pitman/idler arm support kit
- Aero Tanks 48-gallon replacement fuel tank (doesn't extend below frame rail)
- Line-X / UnderCover tonneau cover
- CalTracs traction bars
- 285/60-18 Nittos on 18" x 9" Centerline wheels (corners like a UFO)
I am also doing a 5" and a PPE w/DPF delete. We are installing it today. Should have it done tomorrow. I tried it first with a DPF back kit and I was seeing high EGT's and gas falling out my truck (well it felt like it) so off with the dpf and we should see a very nice out come.
Nor-Cal Nick
__________________ 2008 Chevy 3500HD Dually LTZ <<< Clink on link to see truck.
Cognito 2-3 leveling kit, HD tie rods, Steering braces, Idler pivot, Front & Rear Sway Bar, Bistein's frt & rear, Sulastic shackles, Bags, Toyo MT 295/70r17 w/2" spacers, AFE stg2, MBRP 5" turbo back w/RBP back 6" tip, EFI Live by Duramaxtuner.com, Nexus gauges, Nicktane fuel filter, TTS Dual pumps & pick up, Transgo JR, MagHytec Trans & Diff pans, Titan 62gal fuel tank, Amp boards, 8000k HID Headlights and fogs, Drawtite Sig.24k 5er.
6-7-08 “400hp Fun Tune” >> 414hp./786tq.
6-7-08 “LMM08_08_HOT_6.07.08_Highboost” >> 440hp./805tq.
Try Nate @ Performance Truck Products TX 651-303-0043. I'm pretty sure he carries turbo back for LMM. Make sure you have some kind of a programmer to deal with the DPF delete.
I have a 5" MagnaFlow DPF back right now, but will be grafting a MBR 4" downpipe to make it Turbo back. I'm not too sure about the flow transition but will see how it goes.
__________________ 08 Sierra WT CC SB
Steel Gray 4x4
PPE RACE
Modded OEM AirBox/PCV Reroute/4" MBRP into 5" MagnaFlow/ EGR BLOCKED
Isspro EGT/Boost gauges Cognito Leveling Kit/HD Tie Rods Pitman/Idler Support Brackets/Bilsteins
Pirelli Scorpion ATR 265/75/16 Coated OEM Wheels
Factory Oval Steps/Rhino Lining
Klein Air Horns (4)/ViaAir 150 psi 2g compressor
Thanks for the help guys, I'll be ordering an MBRP exhaust soon (for offroad use only ). I have EFI Live to tune out the codes and expect to get a pretty good jump in fuel mileage.
Nor-Cal Nick please let me know how the install goes, I'm anxious to hear.
__________________ 07.5 LMM
4 inch lift, larger wheels and tires.
EFI Live (learning slowly)
Edge Insight Digital Gauge
5" MKO exhaust
Well all went great. I pulled my 40 foot 5er loaded and I did the math after the trip and I came up to be getting 14mpg. WOW I was happy because I did not "BABY" it at all. Hills I was on it staying around 60mph and still stayed under 1200egt's.
I just ordered EFI for my truck to try. I hooked up with a tuner so we can find that sweet spot for towing.
If any of you guys want more info let me know and I am happy to help.
Nor-Cal Nick
__________________ 2008 Chevy 3500HD Dually LTZ <<< Clink on link to see truck.
Cognito 2-3 leveling kit, HD tie rods, Steering braces, Idler pivot, Front & Rear Sway Bar, Bistein's frt & rear, Sulastic shackles, Bags, Toyo MT 295/70r17 w/2" spacers, AFE stg2, MBRP 5" turbo back w/RBP back 6" tip, EFI Live by Duramaxtuner.com, Nexus gauges, Nicktane fuel filter, TTS Dual pumps & pick up, Transgo JR, MagHytec Trans & Diff pans, Titan 62gal fuel tank, Amp boards, 8000k HID Headlights and fogs, Drawtite Sig.24k 5er.
6-7-08 “400hp Fun Tune” >> 414hp./786tq.
6-7-08 “LMM08_08_HOT_6.07.08_Highboost” >> 440hp./805tq.
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.