• Sale
  • $40.00
  • Regular price $55.00

2001-2004 LB7 DSP5

Key Features:

  • Not Having To Pullover To Flash A Different Tune, Switching Instantly Between Calibrations.
  • Stock, Economy, Tow, Heavy Haul, Performance At The Tip Of Your Fingers.
  • Valet Mode If You Have An Employee Or Teenager So They Can't Adjust Your Tune Settings.
  • Includes All Items Required For Install.
  • Will Work On Duramax Diesel Engines 2001 - 2004 LB7.


  • What Is DSP5?
    • DSP5 Stands For "Duramax Switch Performance". DSP5 Gives You The Ability To Switch Between 5 Calibrations With The Purchase Of SOTF (Shift On The Fly).
    • This Switch Needs To Be Used With An EFILive Tuner And You Must Have A DSP5 Tune To Use This Switch.
    • Calibrations Not Included.