USED BANKS DIESEL TUNER FOR THE GM LLY DURAMAX MOTOR. COMES WITH SPEEDLOADER AND THE BANKS DYNAFACT EGT GUAGE AND TURBO BOOST GUAGE. THE THERMO COUPLE FOR THE EGT SENSOR IS INCLUDED AND ATTATCHED TO THE CHIP ALREADY.THIS WILL TURN YOUR DURAMAX INTO A ROCKET SHIP. I HADBANKS 4" EXHAUST AND A COLD AIR INTAKE ON MINE AND I COULD GET 9.40'S ON THE 1/8TH MILE TRACK....WITH THE SPEED LOADER WHICH IS INCLUDED AND ON LEVEL 6, IT GIVES YOU 124 EXTRA HP AND 303 EXTRA LB/FT OF TOURQUE. I DID ALOT OF RESEARCH BEFORE I BOUGHT THIS WHICH WAS INSTALLED ON THE TRUCK WHEN IT HAD 350 MILES ON IT AND SOLD IT JUST RECENTLY WITH OVER 165K ON IT. IT NEVER MISSED A BEAT. GO TO COMPLETE INFO. YOU WON'T BE DISAPPOINTED WITH THIS. PLEASE EMAIL WITH ANY QUESTIONS. THANKS