Installing Eibach Multi-Pro struts on your 2005-2010 Mustang that already has Maximum Motorsports Caster Camber Plates (Mm5CC-1) requires this conversion kit. The upper spring perch supplied in the Eibach Multi-Pro kit will NOT properly fit to the bottom of the MM Caster Camber Plates (Mm5CC-1). This conversion kit provides a new spring perch and related items to allow installation of a Multi-Pro strut to the MM cater Camber Plates. The only other alternative is to install the complete Mm5CC-5 Caster Camber Plate kit.
Better by design
Why do I need this MM kit?