If you have pushed your Mustang to the limit, whether on the track or the street, you may have encountered issues with cracked torque boxes. These reinforcements are specifically designed to...

If you have raced your Mustang aggressively, on slicks, or even on the street and especially if your car is a 5-speed, you may have cracked torque boxes. Fox bodies don't have the best chassis to...

Strip Grip Kit by UMI Performance includes everything you need to safely lower your track 60-foot times and increase track consistency. Drive you tires into the ground and be ready to launch hard...

You thought the notorious South Side Machine lift bars were done? Well, we brought them back! The UMI lift bars replace your stock control arms adding tremendous track gains while keeping your ride...

You thought the notorious South Side Machine lift bars were done? Well, we brought them back! The UMI lift bars replace your stock control arms adding tremendous track gains while keeping your ride...

Upgrade your vehicle with UMI's heavy duty tubular adjustable control arms for improved performance on the track and autocross. These direct bolt-on replacements feature high-quality construction and...

Upgrade your vehicle with UMI's heavy duty tubular adjustable control arms for improved performance on the track and autocross. These direct bolt-on replacements feature high-quality construction and...

The complete kit includes a set of UMI Performance single adjustable lower control arms and a set of UMI’s "on-car" double adjustable upper control arms. These direct bolt-on replacements are...

This kit includes a set of UMI Performance adjustable lower control arms and fixed-length upper control arms. These direct bolt-on replacements are designed to minimize wheel hop, enhance cornering,...