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Open Roads Forum > Tow Vehicles

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Tystevens

SLC, Utah

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Joined: 03/08/2010

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Posted: 07/07/11 03:23pm

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markaug wrote:

So just be upfront with your dealer. If you want big tunes.....well then you want to play then you must pay.

x2. Some dealers will ignore tuners, some won't. But IMO, trying to conceal evidence that you had a tuner on there in the first place is dishonest.

2008 Hornet Hideout 27B
2010 Chevy Suburban 1500 LT, Z71 package, 5.3/6A/3.42

Prior TVs:
2006 Chevy Silverado 2500HD ccsb 4x4 LT, Duramax LBZ
2005 Chevy Suburban 1500 4x4 LT, 5.3 L, 4.10 gears, LT package
2002 Dodge Durango 4.7 4x4

ib516

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Posted: 07/11/11 10:39am

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I have a Hypertech Max Energy for my Cummins and I have been very happy with it.

You will not see any significant increase in mpg no matter what the tuner maker claims. It just doesn't happen.

You will be risking you warranty, and you need to consider that in your decision.

You will get added power that is fun to have and in my experience using three different power adders on two different trucks, there is no penalty in mpg for having that extra power until you get up into the higher levels of added power that are not safe for towing.

If you have a DPF equipped Duramax (LMM), I would leave it stock. Tuners and DPFs do not get along generally. You may even lose mpg using a tuner with a DPF equipped truck as the higher power produces slightly more soot in the exhaust which uses more fuel more often to regen the DPF which = lower mpg.

2010 Cougar 322QBS 5er
2007 Dodge 3500 SRW Megacab, 4x4, 5.9L Cummins, 3.73, 48RE auto
HYPERTECH MAX ENERGY or DIABLO PREDATOR tuning
MBRP 4" Turbo back
Scangauge2 for Boost, Coolant temp, Rail press & Trans Temp
Torklift Stable Loads