B&M Shift Plus Electronic Shift Improver Kit will allow you to fully recalibrate your transmission's hydraulic system electronically. This kit is perfect for performance, towing and RV applications, and is designed to give you optimum performance and significantly extended product life. The Improver kit will firm up the shifts and reduce heat and slippage as well. It installs effortlessly in minutes, without having to remove the transmission pan or valve body. Do not hesitate and improve your shift's firmness while reducing slippage and heat with this comprehensive B&M Shift Plus Electronic Improver Kit. The kit is emissions legal in all states, so you cannot go wrong with it!