Product Details B12 Special Rear Lifted Coil Springs with 1" Rear Lift Height (36-286539) by Bilstein®. Quantity: 2 per Pack. Bilstein B12 (Special) coil suspension springs are designed to alter the vehicles ride height for optimum performance. Utilizing various different technologies to achieve the optimum ride height for a specific requirement. Bilstein B12 (Special) coil springs provide the perfect combination of suspension dynamics, quality and aesthetics. Specifications: Finish: Black Features: .