03-07 5.9L Cummins

For the 2003 model year, the Cummins was introduced with Bosch high pressure common rail fuel injection, again increasing power output. On automatic equipped vehicles, the 47RE was upgraded internally to increase durability and torque capacity, now known as the 48RE. The 2003 rating for the Dodge truck was released at 305 horsepower (224 kW; 308 PS) and 555 foot-pounds (752 N·m). Midway through the 2004 model year, the Cummins 600 was introduced, producing 325 horsepower (242 kW; 330 PS) at 2,900 rpm and 600 pound-feet (813 N·m) at 1,600 rpm. This engine was noticeably quieter than the previous engines.


Having a hard smokey start issues? Wondering why your fuel economy is getting worse or just looking for some extra power and engine efficiency? We offer OEM replacements for stock power, or performance injectors for more power and d fuel economy gains.

Key Benefits

  • Improved starting
  • Improved fuel economy
  • More power


Smarty Tuner 03-07 Dodge Cummins Diesel 5.9L

The Smarty Programmer is a handheld tuner that allows the user to do modifications on a vehicle’s fuel injection settings to achieve increased power and torque and enhanced drivability without tampering with its safety and emissions systems.

Key Benefits:

  • Ten different performance levels.
  • ABS tire height updates.
  • Not traceable in the stock setting.
  • Smarty leaves no footprint.
  • Manual High Idle is enabled in all softwares
  • Reads Diagnostic Trouble Codes in plain text.
  • Programmable Speed Limiter from 25 to 250 mph
  • Power on Demand