Vary shift firmness instantly with the turn of a dial!

The A/T Boost Controller works by intercepting the signal between the TCU and transmission, thereby giving the driver the ability to select the shift quality that is appropriate for the given driving conditions.

This 3 inch X 4 inch black box can be mounted in the cockpit or under the hood and provides the user with four different levels of shift feel. The A/T Boost Controller works in conjunction with a modified valve body, a shift kit, a performance transmission or as a stand alone unit with no other modifications.