Boost Controller OBD1 ECU Chipping Guide

Boost by gear's primary function is to prevent traction loss in lower gears. Boost by gear enables the control of boost pressure levels for each gear. Some gears you may want to decrease the boost psi to keep traction, where's other gears you may want to increase the boost pressure because you have enough traction and want to make more horsepower. The idea is to be able to push the pedal to the floor and not lose traction, boost by gear enables you to do this.