When tuning up your Mustang, replacing your sensors should be on the list. Having bad sensors can cause bad performance, misfires, and bad fuel economy. Get all of the sensors you need in 5.0 Resto's 1979-93 Mustang engine sensors kit. This kit includes all of the valves, sensors, solenoids, and relays you need to get your Fox Body running great again. Keep your engine bay nice and neat with convoluted wire loom and wire harness clips.