Alignment Kit - IRS Subframe 15-21 Mustang

The Alignment Kit - IRS Subframe 15-21 Mustang is a crucial enhancement for S550 chassis owners aiming to rectify factory manufacturing tolerances. This kit addresses the common issue of misalignment in the rear independent rear suspension subframe, which can lead to unpredictable handling and uneven tire wear. It is an ideal solution for automotive enthusiasts and performance drivers who prioritize precise vehicle geometry.

Engineered by Steeda Autosports, this kit features precision-machined inserts that fill the gaps between the subframe mounting bolts and the vehicle chassis. The black plastic bushings are designed to endure significant lateral forces while being lightweight and resistant to environmental wear. By effectively eliminating movement during hard acceleration or heavy cornering, the kit locks the subframe into its intended position, ensuring that the rear suspension geometry remains fixed and repeatable.

This Alignment Kit is specifically tailored for the 2015 to 2021 Ford Mustang, accommodating all trim levels equipped with the independent rear suspension system. Owners seeking an affordable yet impactful modification will find this kit serves as a foundational piece for any performance-oriented setup. By centering the subframe, it establishes a consistent baseline for all subsequent suspension tuning and alignment settings.