20-23 L5P COMPLETE ALL IN 1 KIT

THE MOST COMPLETE KIT ON THE MARKET 

EVERYTHING YOU NEED AND HAVE TO HAVE 

MPVI4 Tuning Device – The most advanced tuning interface for Duramax ECM tuning.

✔ Custom 1 TECH Tune Files – Developed for real-world performance and reliability.

✔ Tune Type Options – MULTIPLE TuneS or Shift-On-The-Fly (SOTF).

✔ Exhaust System Options – COMPLETE Cat & DPF Race pipe, 4-inch 

✔ EGR Upgrade Kit .

✔ 6 Universal Credits – Required for ECM unlocking and flashing.

✔ TURBO DOWN PIPE 

✔ CAN BUS KIT

✔ ECM UNLOCK SERVICE VIA INTERNET MPVI UPGRADE