This package deal for both the transmission and diff cooler was designed to save you money. DRM coolers have been tested around the world at many different race tracks. They have been tested to 600 horsepower in roadracing applications. It will bring your fuild temps down to a cool level. They mount in the factory ZO6 duct location. There is a small amount of wiring needed. The kit includes the pump, cooler, aeroquip lines, AN swivel fittings, install pics. The normal install time is 4 hours for each unit. DRM recommends Redline fluid for added protection.