LMM Exhaust: DPF,Non-DPF,Tailpipes,Full Systems,Codes,Mods

pa32rt · 01-22-2008, 03:40 PM

Ok, I'll start it:

Here is a thread for all LMM exhaust related talks. There have been about 4-5 new questions a day that are covered in several other threads. The LIGHTING / HID sticky thread did (and is doing) so well, I thought it was time to start one about LMM exhaust mods.

At this time, I have put on the MBRP S6026409 DPF-back tailpipe. Highly modified near the axle and back, for the NINE INCHES of rear drop on my particular rig.

Also, at this time, I have the MBRP S6004409 TURBO-back system sitting in the box on my garage floor. I will run that back to the slip-connection-joint that is just in front of the axle on the S6026. So, I will end up with an extra brand-new tailpipe assembly from the S6004 kit. I still figure this is easier and money ahead of manufacturing a new system at a muffler shop from front to rear. Plus, it's all mandrel and stainless.

I am running the Quadzilla Stealth-2 tuner, and have the NON-DPF tunes standing by (on my PC) to load and handle the codes.

Here's my current tailpipe/tip, which will stay with the new system:

pa32rt · 01-22-2008, 04:20 PM

Here is a side shot of the tailpipe after mods to tuck it up, away from the road:

fire0021 · 01-22-2008, 09:09 PM

ahh finally hopefully this will get all the info together in one place for every one good job on getting the thread started

pa32rt · 01-22-2008, 09:39 PM

Quote:

Originally Posted by fire0021

ahh finally hopefully this will get all the info together in one place for every one good job on getting the thread started

EXACTLY. I PM'd DIESEL DUALLY (moderator) and asked if we could do this. As mentioned, especially since it worked so well for the HID/Lighting stuff.

huthuthut · 01-22-2008, 10:29 PM

More info....

There are 2 kits often sold - catback and turboback. Be aware that turbo back kits are NOT really from the turbo, and are basically a front pipe back kit. To get a true turbo back exhaust, you need a replacement downpipe such as the Diamond Eye 4" downpipe. McRat sells them here: http://www.dieselplace.com/forum/sho...d.php?t=209068

TByrne has an excellent post here: http://www.dieselplace.com/forum/sho...d.php?t=197360 on removing the DPF for off road purposes.

GMCJOE · 01-23-2008, 02:34 AM

Great idea for an exhaust thread pa32rt.

You are right about all the new threads each day for LMM stuff. The lighting thread did work out very well and is still doing good as you said.
This is a great way for LMM guys and new diesel owners to do all the reading in one main thread.

That thread by tbyrne that hut posted is great for anyone who wants to do a turbo back/dpf delete kit. It includes pics and details on what to do.

TexasTrey · 01-23-2008, 01:46 PM

alright guys, I have spent all my time trying to learn about the LLY t know find out I'll be getting an LMM (believe me I'm not complaining) But I have very little knowledge of the new generation. I ordered a 5" MBRP for my LLY I'm just going to assume that this will not work on the LMM, would I be correct ?

dmax4u2nv · 01-23-2008, 04:16 PM

THE HUGE TAIL PIPE

The huge tail pipe on the lmms is due to the extremely high temperatures the truck sees while in regeneration with the dpf. They let in cool air so your tail pipe doesnt become a torch.

LBZrcks · 01-23-2008, 04:26 PM

Quote:

Originally Posted by TexasTrey

alright guys, I have spent all my time trying to learn about the LLY t know find out I'll be getting an LMM (believe me I'm not complaining) But I have very little knowledge of the new generation. I ordered a 5" MBRP for my LLY I'm just going to assume that this will not work on the LMM, would I be correct ?

Did you order a turbo back kit? if it has the four bolt flange you can still bolt it on after the doc. You will still need tunning since your removing the dpf.

MMLMM · 01-23-2008, 04:33 PM

I have the DPF back right now. I plan on removing the dpf. should I leave doc or not. also is there a flange from the down pipe on the turbo? any more info or pics would be great. Thanks!

01-22-2008, 03:40 PM	#1
pa32rt Diesel Master Join Date: Sep 2007 Location: Bakersfield, CA Posts: 2,107 Garage: active iTrader: (0)	LMM Exhaust: DPF,Non-DPF,Tailpipes,Full Systems,Codes,Mods Ok, I'll start it: Here is a thread for all LMM exhaust related talks. There have been about 4-5 new questions a day that are covered in several other threads. The LIGHTING / HID sticky thread did (and is doing) so well, I thought it was time to start one about LMM exhaust mods. At this time, I have put on the MBRP S6026409 DPF-back tailpipe. Highly modified near the axle and back, for the NINE INCHES of rear drop on my particular rig. Also, at this time, I have the MBRP S6004409 TURBO-back system sitting in the box on my garage floor. I will run that back to the slip-connection-joint that is just in front of the axle on the S6026. So, I will end up with an extra brand-new tailpipe assembly from the S6004 kit. I still figure this is easier and money ahead of manufacturing a new system at a muffler shop from front to rear. Plus, it's all mandrel and stainless. I am running the Quadzilla Stealth-2 tuner, and have the NON-DPF tunes standing by (on my PC) to load and handle the codes. Here's my current tailpipe/tip, which will stay with the new system: __________________ 2008 C3500 2WD DRW LMM. LT2 with everything. BANKS RamAir intake, MBRP turbo-back, Mobil DELVAC-1 (5w-40), Quadzilla Stealth-2, DJM 7.5"/9" drop, Rancho RS9000s, Weld 17X6.5 Velociti-8s. AKA Beer:30 Last edited by pa32rt : 01-22-2008 at 03:46 PM.
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01-22-2008, 04:20 PM	#2
pa32rt Diesel Master Join Date: Sep 2007 Location: Bakersfield, CA Posts: 2,107 Garage: active iTrader: (0)	Side shot Here is a side shot of the tailpipe after mods to tuck it up, away from the road: __________________ 2008 C3500 2WD DRW LMM. LT2 with everything. BANKS RamAir intake, MBRP turbo-back, Mobil DELVAC-1 (5w-40), Quadzilla Stealth-2, DJM 7.5"/9" drop, Rancho RS9000s, Weld 17X6.5 Velociti-8s. AKA Beer:30
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01-22-2008, 09:09 PM	#3
fire0021 Diesel Master Join Date: Jul 2007 Location: SO CAL Posts: 3,896 iTrader: (0) SoCal Diesel Trucks Member	ahh finally hopefully this will get all the info together in one place for every one good job on getting the thread started
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01-22-2008, 10:29 PM	#5
huthuthut Reset by Diesel Dually Join Date: Apr 2007 Location: Central Coast, CA Posts: 18 iTrader: (0)	More info.... There are 2 kits often sold - catback and turboback. Be aware that turbo back kits are NOT really from the turbo, and are basically a front pipe back kit. To get a true turbo back exhaust, you need a replacement downpipe such as the Diamond Eye 4" downpipe. McRat sells them here: http://www.dieselplace.com/forum/sho...d.php?t=209068 TByrne has an excellent post here: http://www.dieselplace.com/forum/sho...d.php?t=197360 on removing the DPF for off road purposes. Last edited by huthuthut : 01-22-2008 at 10:30 PM.
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01-23-2008, 02:34 AM	#6
GMCJOE Diesel Master Join Date: Jul 2006 Location: Southern Cali Posts: 1,433 Garage: active iTrader: (0) SoCal Diesel Trucks Member	LMM Exhaust Thread Great idea for an exhaust thread pa32rt. You are right about all the new threads each day for LMM stuff. The lighting thread did work out very well and is still doing good as you said. This is a great way for LMM guys and new diesel owners to do all the reading in one main thread. That thread by tbyrne that hut posted is great for anyone who wants to do a turbo back/dpf delete kit. It includes pics and details on what to do. __________________ 2008 LMM DURAMAX 2500HD Black on Black - Fully Loaded GMC Sierra. CC, SB, Z71, Touch Screen Navi, Leather, Sunroof, Remote Start, Trailer Brake Controller. Mods-Cognito 2"-3" UCA Lift from NorCal Nick. Tony's PVC Re-Route kit. Bilstein 5100's. Mag-Hytec Diff Cover. 6000k HID's. Limo Tint all the way around. AMP Power steps/LED step lights. Amsoil. Transynd. Customized Escalade Door Handles. 100 Watt Highss. Blacked out GMC Grill Badge. Polished Exhaust tip. My Muscle Car Buisness: 60's-70's Chevelle Super Sports & a '68 Camaro SS- pics in my Garage--->http://www.dieselplace.com/forum/gar...o=hall&u=40135 Fun Times, Cool People and Awesome Trucks!! - Southern California Truck Nights: http://www.dieselplace.com/forum/sho...d.php?t=268056 SoCal Diesel Truck Club
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01-23-2008, 01:46 PM	#7
TexasTrey Diesel Enthusiast Join Date: Jan 2008 Location: Hometown: Wimberley, Tx. College in Charlotte, NC Posts: 8 iTrader: (0) NC Dmax's Member	alright guys, I have spent all my time trying to learn about the LLY t know find out I'll be getting an LMM (believe me I'm not complaining) But I have very little knowledge of the new generation. I ordered a 5" MBRP for my LLY I'm just going to assume that this will not work on the LMM, would I be correct ?
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01-23-2008, 04:16 PM	#8
dmax4u2nv Diesel Master Join Date: Aug 2004 Location: Campbell, CA Posts: 1,338 Garage: active iTrader: (0)	THE HUGE TAIL PIPE The huge tail pipe on the lmms is due to the extremely high temperatures the truck sees while in regeneration with the dpf. They let in cool air so your tail pipe doesnt become a torch. __________________ 2008 Dodge Challenger- Black on black #5816/6400 -for sale 2007 Yamaha R6 Last edited by dmax4u2nv : 01-23-2008 at 04:16 PM.
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01-23-2008, 04:33 PM	#10
MMLMM Diesel Specialist Join Date: Nov 2006 Posts: 835 iTrader: (0) 702 Duramax Crew Member	I have the DPF back right now. I plan on removing the dpf. should I leave doc or not. also is there a flange from the down pipe on the turbo? any more info or pics would be great. Thanks!
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