cp4 to cp3 conversion

2011 - 2015 LML Duramax CP4 to CP3 Conversion Kit with CP3 Pump

cp4 to cp3 conversion
  • Proven Reliability

    The CP3 fuel pump is proven to have longevity and to be reliable in performance applications. 
  • Remove the Worries

    The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components. 
  • This Kit Requires Tuning

    This kit will need custom tuning to be able to run properly.