ST Suspension's coilover kit for your S550 replaces your factory OE shocks, struts, and springs. Installing this coilover kit onto your 2015-2016 Mustang GT or EcoBoost will deliver a more sporty handling by reducing body roll during spring compression. You have the ability of a wide range of adjustment with this coilover kit from ST Suspension. ST Suspension has engineered these coilovers to give you adjustability in ride height using a polyamide ring located on the strut. You can finely tune your ride height to your liking, front height can be adjusted from 1.2" to 2" and rear height can be adjusted from .8" to 1.6". The ST-XTA dampening technology used in this coilover kit allows you to make your suspension stiffer or softer depending on driving conditions, and can be easily adjusted via the nut at the end of the chrome piston rod. Stiffen your dampening to get more stability and reduced body roll out of your Mustang. Soften the dampening and your S550 will feel more comfortable for daily driving. The aluminum top mounts on these dampers also feature a built-in camber and caster adjustment which can be tuned to your driving needs.

These ST-XTA adjustable coilovers from ST Suspension features galvanized, multiple-sealed dampers with polyamide rings for adjustability. Both front and rear damper housings on this kit are made from low-friction and pressure resistant housing featuring chrome-plated piston rods for maximum longevity. A mono block guide and ST seal package ensures that the twin-tube dampers remain free of dirt particles.