Here’s why my UDC Pro 5.9 Cummins & 48RE Custom Tuning is superior:

I have access to engine and transmission tuning parameters other custom tuners don’t.  Most tuners focus solely on the engine and might provide some 48RE transmission tuning.  My tunes are a complete package of mated engine and transmission parameters not offered ANYWHERE else which will provide an unparalleled driving experience.  I provide custom tuning for 3rd gen Dodge Ram trucks with a 5.9 Cummins engine and a 48RE transmission for model years 2004, 2004.5, 2005, 2006 and 2007.

You have probably heard or read:

The 48RE shift points can only be adjusted by replacing the valve body or installing a shift kit…  While a shift kit is a great addition mainly to increase the line pressure and clutch holding power, I assure you the ECM/TCM is in complete control of the shift points in a 48RE Transmission.  The issue is other custom tuning platforms don’t alter the correct parameters to accurately to adjust the shift points… My custom tuning does.

My Custom Tunes:

I focus on daily driver tunes for towing and fuel economy with a moderate increase in horsepower (about 60) and torque.  My tunes are safe for a stock transmission and can be bumped up in power if required. 

***If you need a higher performance tune please message me here.

You will get:

  • Raised 1-2 shift
  • Raised 2-3 shift
  • Lockup in 3rd gear that holds while coasting
  • locked 3-4 upshift
  • Tow Haul Button converted to Overdrive Off.  2004-2005 trucks can restore the tow haul maps with an additional switch and 2006-2007 trucks have tow haul and OD off functions at the button on the shift lever.

This will result in a stunningly different driving and towing experience.


I realize the MM3 and cost of custom tuning is higher than other platforms.  The fact is those other platforms can’t do what UDC Pro can. I was literally sourcing parts for a manual swap to get rid of my 48RE until I figured out how to make it work right.  Now I love driving it, as do the rest of of my customers. I have a few of their testimonials here.

I have spent years researching parameters for custom tuning the 3rd Gen 5.9 Cummins trucks and the 48RE transmission.  I have dissected the flash files in various editors and located parameters no one else has.  When it comes to writing custom tunes for your 3rd gen 5.9 Cummins and Smarty Touch or MM3 tuner, I’m not happy until you are.

The bottom line:  I like helping people enjoy their trucks.