Launching harder, reducing wheel hop, and adding cornering consistency to your 1979-2004 Ford Mustang is easy with adjustable upper control arms from BMR's suspension. The stock control arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMR's polyurethane, on-car adjustable tubular upper control arm for Fox, SN95, and New Edge Mustangs (UTCA040) is manufactured from heavy-duty 1 1/4 inch DOM steel tube. The center adjuster is CNC-machined from chrome-moly steel with rolled threads for the ultimate in strength and durability. This design gives you a strong control arm that greatly improves performance. Greasable, internally fluted, 95-durometer bushings add a solid, more responsive feel over the stock rubber bushings. BMR's bushing design allows grease to evenly coat the inner sleeve, keeping grease in the bushing under high loads. These flutes also direct grease to the outer edge of the bushing, keeping the thrust surface lubricated. This efficient lubrication ensures quiet, reliable operation over the life of the bushings. BMR's suspension designed the UTCA040 to work well in street performance, drag race, and road race applications. The stock control arms flex under even light cornering loads giving you inconsistent handling characteristics. Combine this with soft bushings that have massive amounts of deflection and you're left with poor performance. The UTCA040's heavy-duty construction eliminates control arm flex, giving you much improved repeatability on the street, starting line, or in the corners. The adjustability allows you to dial in pinion angle for reduced NVH. BMR's poly bushings offer plenty of articulation for great handling, while remaining strong enough to stand up to high loads of any performance environment. These are the perfect upgrade for the enthusiast looking for max performance at an affordable price. When performance is a must, rely on BMR's suspension!