BMR Red Lowering Springs - Set of 4 - for 2015-2016 Mustang V8 is specifically designed for street/drag race application. The front is lowered 1.25" and the rear springs lower the rear 0.25". The SP086R Drag Race lowering springs offer great weight transfer and improved ride quality. Blending aesthetics and performance, BMR has designed the SP086 for the drag race crowd who want to the ultimate in straight-line acceleration. These springs will lower your S550 and feature a fine-tuned spring rate (150 lb/in front, 800 lb/in rear) to give you great handling and a smooth ride. The linear spring rate offers plenty of support while remaining soft enough for great weight transfer. When performance and looks are a must, rely on BMR Suspension!BMR Suspension's SP086 lowering springs are available in red powder coat for long-lasting good looks. Installation time is about 3-4 hours. Proudly made in the U.S.A.