BMR 15-22 S550 Mustang Sway Bar Kit with Bushings Front and Rear Black Hammertone

If you're looking to tighten up the handling on your 2015-2021 Ford Mustang, especially for spirited driving like autocross or track days, this BMR Suspension sway bar kit is a solid choice. Stock sway bars are often too flexible, leading to noticeable body roll when you turn. This kit replaces both the front and rear bars with units designed to significantly reduce that lean, giving you a more connected feel to the road and better control during cornering.

BMR builds these sway bars from heavy-duty 38mm DOM steel tubing for the front and 25mm for the rear. They're cold-formed, which helps them resist torsional fatigue and maintain their shape and spring rate over time, unlike some hot-formed bars. The CNC forming ensures precise dimensions for a consistent fit and performance. You'll also notice welded thrust washers on the front bar; these are important because they keep the sway bar properly centered and prevent unwanted side-to-side movement when you're really pushing the car through corners. The kit includes low-deflection polyurethane bushings, which are much stiffer than the factory rubber ones, further minimizing flex and improving responsiveness. The front bushings are 95-durometer and the rear are 88-durometer, with internal flutes designed to hold grease and keep things working smoothly.

This kit is designed to work with your Mustang's existing suspension geometry, and the polyurethane bushings are a direct replacement for the stock rubber ones. You'll experience a noticeable change in how the car handles, with flatter cornering and more predictable behavior when you're driving hard.