ShiftPlus simply recalibrates your transmission's hydraulic system electronically. The ShiftPlus shift firmness not only makes driving more fun and pleasurable, but slippage and heat are reduced - extending the life of your transmission. Anyone can install a B&M ShiftPlus in minutes with a few simple hand tools. This new design allows you to improve the transmission's shifting performance without removing the transmission pan or valve body. The B&M ShiftPlus electronically enhances shift quality and is adjustable. A simple flip of the switch allows the transmission to operate in the performance mode.

ShiftPlus will work on 4 Speed Automatic Cavaliers, Sunfires, Cobalts, and many other applications.

Installation Information for Cavaliers and Sunfires can be found here:
http://www.j-body.org/forums/read.php?f=41&i=4376&t=4376

Installation Information for Cobalts can be found here:
http://www.cobaltss.net/forums/showthread.php?t=37890

Please read instructions carefully and install at your own risk.