OPERATION
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4. GM GASOLINE VEHICLE SPECIFIC DOWNLOAD FEATURES
TRANSMISSION FIRMNESS* AUTOMATIC TRANSMISSIONS ONLY:
This feature will turn up the pressure in the transmission so that shifts feel solid. It also helps reduce
transmission slippage under heavy stress.
Performance: Pressure is greater than tow and stock. This setting is recommended to be used in combi-
nation with, but is certainly not limited to the High Performance Horsepower program.
Tow: Shifts are rmer than stock and less rm than High Performance. (This setting not available on
‘07-’08 models).
Stock: Does not change or modify transmission settings.
TRANSMISSION SHIFT POINTS* GM VEHICLES AUTO ONLY:
This feature will adjust the point in the RPM range in which the transmission upshifts or downshifts.
‘99’EARLY ‘07 VEHICLES
Performance: Shifts at a higher RPM than Stock and Tow. This setting is recommended to be used in
combination with, but is certainly not limited to the High Performance Horsepower Program.
Tow: Shifts at a higher RPM than Stock and shifts at a lower RPM than High Performance.
Stock: Does not modify shift points
LATE ‘07’08 VEHICLES
There are two shift point options available for the ‘07-’08 vehicles:
Performance - This is a pre-established shift point tune. It is a tune that is setup for the average
user, and offers an enhanced shift pattern.
Custom - Choosing the custom tune setting allows the user to setup custom shift points. Setting
up custom shift points requires 3 steps:
1. Choose Rev Limiter.
2. Choose shift point from 1st to 2nd gear.
3. Choose shift point from 2nd to 3rd gear.
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