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Old 04-05-2012, 10:16 AM   #1
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Question GM Duramax programmer?

what is a good brand of programmer especially for the DURAMAX(03).Just looking for a small power increase.I have the 4in exhuast allready so wanting to make the next step.
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Old 04-05-2012, 11:28 AM   #2
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I am assuming you are talking about diesel?

H&S and Edge are two I know of the top of my head that have a pretty good rep. There are others, Bully Dog, Banks, Quadzilla, etc. You can do a search on the net for diesel performance places and see what they have to offer. I personally use http://www.doghousediesel.com/

I use a Smarty on my Ram. But, they only make for Dodge only.

I would also look into getting a CAI (cold air intake).
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Old 04-05-2012, 11:54 AM   #3
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I put an Edge on my 03 6.0 PS. There are more expensive and better options out there but I just wanted a little more power at a resonable cost. I think I paid about $350.00 for the setup which included the EGT sensor and dash mount. This unit works very well for me and gives a noticable power increase and tranny firm up while towing. The sluggish starts I get from stock are gone. I too have 4" exhuast which is a must before tuning so your set there. I keep it on econo for daily driving and that gives it a boost too.

There is a history and alarms you can set for all the fluid temps which is nice. Should you hit the max you set your unit will flash red indicating a problem. The speed, EGT, RPM and boost are always shown on my unit which I like as well.

For the price and perfomance on mine I am very happy. How it would work on a GM diesel I cannot say. Maybe go into one of the Duramax forums and dig around.
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Old 04-05-2012, 01:38 PM   #4
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Your best bet is to stay away from the canned tunes. Go with something that you can get custom tunes for. Something like a SCT is a popular brand.
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Old 04-05-2012, 06:38 PM   #5
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Quote:
Originally Posted by Gunnar View Post
Your best bet is to stay away from the canned tunes. Go with something that you can get custom tunes for. Something like a SCT is a popular brand.
Why is that?
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Old 04-05-2012, 07:34 PM   #6
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No programmer ever on my truck. Don't need one, don't want the potential for problems and I have more power now than I need and I get 12.5 mpg towing and 19-20 empty.
I am now out of warranty so I don't have that to worry about. I just don't see the need.
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Old 04-05-2012, 07:41 PM   #7
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Originally Posted by krsmitty View Post
Why is that?
Some of the canned tunes are not transmission friendly. Some add a bunch of power to the engine but don't do much with the transmission. Although I guess if you aren't going to be using the highest level of tune things may be ok. I don't know this from experience, just from reading I have done and mostly concerning Ford.

I guess it's just something to be aware of when choosing a tuner.

I had an Edge on my 03 for a short period but removed it after reading some of the tranny horror stories. It sure woke up the truck though.
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Old 04-05-2012, 07:51 PM   #8
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Find a reputable tuning shop in your area that works on Duramax engines and get EFI live. This is a custom tune for your truck with your specific modifications accounted for. These tunes will be more efficient, which means that unless you want it, they shouldn't smoke that much. Head over to dieselplace.com if you haven't already, tons on information over there.
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Old 04-06-2012, 12:25 AM   #9
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Do some reading here. http://www.dieselplace.com It is a Chevy site.
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Old 04-06-2012, 07:05 AM   #10
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I have a Bullydog power pup that I am very happy with... I use the tow-haul mode and on the trip home just now got 14 mpg... going solo I use the power setting... WARNING do not use the crazy larry setting it will put your tranny in limp mode... ( but as soon as you use the power programmer to clear the codes all will be fine) doing that too often will damage your tranny..
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