2007.5 - 2010 Duramax 6.6L

We can make adjustments for various engine modifications as well as engine swaps.  

HP gains for the 6.6L are typically: 

HP LEVEL OPTIONS 
Mild - 60hp
Wild - 120hp
Hot - 175hp

You will send us your computer or we can provide you with one.  If you wish for us to send you a computer simply purchase one from our Factory ECM Category. 

Your computer will be adjusted per your vehicle specifications to get the most out of your vehicle.  We can modify almost anything in the computer programming, just some of the things you might want to think about are:

-Vats Removal (Vehicle Anti Theft)

-Speed Limit removal

-Cooling fan adjustment

-Tire Size and Gear Ratio Adjustment

After purchasing please fill out our order form shown here and email it to us so that we have all of your vehicle specifications. 

After purchasing please fill out our order form that is attached to your order confirmation email.

HOW IT WORKS:

1. PURCHASE THE SERVICE FROM US AND COMPLETE PAYMENT.  AFTER PURCHASE YOU WILL HAVE AN ORDER NUMBER.  PLEASE SEND A PRINTOUT OF THE EMAIL SENT TO YOU OR INCLUDE YOUR ORDER NUMBER ON A WRITTEN PIECE OF PAPER WITH ALL OF YOUR CONTACT INFORMATION.  THIS LETS US KNOW WHEN YOU SEND US THE COMPUTER THAT IT IS YOURS AND LETS US MATCH IT UP WITH YOUR ORDER.

2. BOX UP THE COMPUTER (PACK IT WELL)  ALONG WITH YOUR INFORMATION MENTIONED IN STEP 1 AND SEND IT TO THE FOLLOWING ADDRESS. 

Garrett Tuning

18221 State Route 58 

Wellington OH 44090

3. WE WILL SEND THE COMPUTER BACK TO YOU AFTER THE SERVICE HAS BEEN PROVIDED.

NO REFUNDS ON THIS SERVICE ONCE IT HAS BEEN PURCHASED.  NO EXCEPTIONS