H&S XRT Pro Installation & Operation Manual - •
28 XRT Pro Installation Manual • www.hsperformance.com
Menu, scroll down until you see the reset Transmission option. Select reset Transmis-
sion and follow the on-screen instructions to reset the transmission adaptive memory.
2. After the transmission reset is complete, it is recommended to perform each of the follow-
ing 0-80 MPH runs while in the Performance power level:
•
0-80 MPH @ 25% throttle position, then slow down and come to a complete stop.
•
0-80 MPH @ 50% throttle position, then slow down and come to a complete stop.
•
0-80 MPH @ 100% throttle position, then slow down and come to a complete stop.
The Transmission relearn procedure is complete.
noTe:
On any vehicle using 3” or larger lift blocks under the rear leaf pack, it is HIGHLY RECOMMENDED to install
traction bars when adding additional horsepower.
gear ratio adjustability
During the download process you have the option to calibrate your gear ratio. You have four
choices; 3.54, 3.73, 4.10, and 4.54.
Dual fuel Tank option
During the download process you have the option to choose whether or not your truck is
equipped with dual fuel tanks
Maxx calibration control
Maxx Calibration Control (MCC) is an advanced engine management software tool that enables
custom tune editing with your H&S tuning device. With the power to control all aspects of engine
and transmission management, MCC gives YOU the ability to control how YOUR engine operates!
When you have exceeded the limits of conventional tuning and want to unleash the power of a
custom tune, look no further than MAXX CALIBRATION CONTROL
noTe:
Applications may vary by vehicle make and model, please check our website to see if MCC is available for your
vehicle at www.hsperformance.com/mcc
20011 - 2014 6.6L LML Duramax Specific Features Continued >>