Duramax Diesels Forum Truck of the Week
Old 05-11-2019, 06:25 PM
jpeters9605 jpeters9605 is offline
Join Date: May 2019
Posts: 1
Default Tuner??

I'm sorry if this topic has already been beaten to death. I'm kind of new to the diesel game. I've got a 2004 LB7 Silverado. It has 112,000 miles on it. I bought it a few months ago. I'm getting around 15 or so MPG driving to and from work. I'll start towing my dump trailer and lowboy trailer soon. I've been thinking about the Edge CTS2 tuner. Mainly to get better MPG's and a little more HP when towing. I really like the fact that I can monitor so much including my injector flow rates because i know injectors are not that great in the LB7. Not looking to fool coal or even use the extreme tunes. Just my daily driver and towing things for the farm. Looking for any input I can get or opinions on other tuners that may fo the same but are better. Already put a cold air intake on the truck and can't afford to put a lot of money into exhaust, intercooler, and all the other stuff out there.

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Old 05-11-2019, 08:09 PM
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superswamper003 superswamper003 is offline
Join Date: Aug 2013
Location: The Evergreen State
Posts: 869

Get efilive from a reputable tuner, there are some on this forum too. I would say your 2nd best bet tune wise would be the ppe standard tuner. Its a generic tuner and they can be had for cheap and the tunes are pretty decent from my experience. But, if you have long term mod plans for the truck then I would just get efilive and be done with it.

2004 LB7-sold

05 lly cc/sb 4wd
pcv reroute, lbz mp, egr block plate, 5" magnaflow, G2 tie rods, ssdieseltuning, cts2, SDP built trans, pump rub fix, FPRV shim
280k miles
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Old 05-11-2019, 10:26 PM
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TheBac TheBac is offline
Why do I keep doing this?

Join Date: Apr 2008
Location: Mid Michigan
Posts: 12,373


Exhaust wouldve helped far more than the intake will. CTS is fine for a beginner, just dont tow on higher settings with a stock trans.
"BBT" -- 2003 GMC CC/SB 4x4 12.14@111.15
"The Cruzer" -- 2014 Chevy Cruze Diesel -- the DD
"Kleshay" -- 2000 C5 Corvette -- the toy

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Old 05-12-2019, 01:08 PM
Join Date: Feb 2009
Posts: 3,705

And don't expect much for mpg gains on an LB7. There just isn't much you can do to help one. The best improvement I got was about 2mpg over stock, but I credit trans tuning and my lower stall converter for that more than anything else.
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

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Old 05-13-2019, 06:03 AM
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Bdsankey Bdsankey is offline

Join Date: Feb 2018
Location: Neenah, Wisconsin
Posts: 674


Get an insight CTS2 to monitor things/change tunes and then get efi-live from a reputable tuner.
Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-1340hp/2200ft-lbs @ ATS Diesel (06/04/19)
-Built Motor, Tuned by Zach @ Starlite, Forced Inductions Billet ETR Gen 4 S480/96/1.10 T6 w/V2 Race Cover, Modded Exergy 250% Injectors, Exergy 14mm Street Pump/LBZ CP3, Goerend Q Converter, Billet Trans, Fuelab Supply Pump/Reg, RCD & Beans Sumps, Front E-Locker, TrueTrac, Yukon 4340 Rear Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support

2) DD/Tow Rig: 2002 LB7 CCSB, Leather, Loaded
-Bosch NEW Injectors, FASS 150, 3" Downpipe, 4" Downpipe Back, RCD Sump, PPE Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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