H&R 12-20 Mercedes-Benz SL550 R231 Sport Spring (w/o ABC) Drivetrain>Differential Dropouts noise and vibration that old

noise and vibration that old mounts transmit into the vehicle

5-inch diameter stabilizer body and piggyback reservoir increases fluid volume to prevent performance fade due to heat and cavitation

System has Active Valve Exhaust valves

Both Red + Blk Collars)

H&R 12-20 Mercedes-Benz SL550 R231 Sport Spring (w/o ABC) Drivetrain>Differential Dropouts noise and vibration that oldSport Spring kits are H&R's number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R'sport Springs lower the vehicle's center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle's