This is a B&M ShiftPlus+ shift improver for the 4L60E transmission found in various GM products. It works with everything from Silverados and Sierras to Camaros and Corvettes. Anything with the 4L60E. It is installed with a simple 2 wire hook up and the controller is mounted in cab. This product improves the shift pressure in the auto transmission. It makes a noticeable difference in shift firmness. It is adjustable to 3 levels of firmness: stock, level 1, and level 2.
This used to be installed in my buddy's Z28 Camaro and made a great noticable improvement. We took it out when we performed a tanny swap in his car from the 4L60E to the old school turbo 350.
We're asking $40 for it.
Pm me for more info or questions.
