The MMI rear coil and spring perch assembly utilizes a custom upper and lower spring perch assembly that is mounted on a screw jack. This allows you to adjust ride height with the turn of a wrench. By employing the use of standard coil over coils you are now free to find the spring rate that is right for you. Everything is manufactured at MMI. This is the system that has been in New Blue. We use our components before we release them to ensure we truly understand what we are selling and they work .
This weight jacker kit has been designed to work with either a 2.5″ x 6″ diameter coil spring or a 2.25″ x 5″ or 6″ coil spring depending on spring rates. The installation time should be about an hour or two. Nu cutting or modification is needed to be made to your car.