When Chrysler's 727 TorqueFlite resides in the tunnel under your machine, performance is automatic-or is it? After all, there are many modifications that can be made to a 727 to improve shift quality.

We've all heard of adding a "shift reprogramming kit" to our ride, but what exactly does it do inside your transmission? Basically, the main purpose is to "reprogram" the flow of fluid through the ...