QA1 Front Pro Coilover Kit - Double Adjustable, Large Tapered Flat End, 550 lbs/in Rate - 1973-1988 Buick Regal swift-spec-r-springs 2010 Mercedes-Benz S600 (W221)

2010 Mercedes-Benz S600 (W221)

2007 Lexus IS350 4WD

2024 Volkswagen Jetta 50mm Strut (MK7)

0 inches | 0 - 25 mm Rear Lowering (inches/mm) 0 - 1

Sport Chassis Code FM Bushing Color Black Bushing Material Polyurethane Color Black Durometer 72 Installation Difficulty Moderate Installation Time (hrs) 1

QA1 Front Pro Coilover Kit - Double Adjustable, Large Tapered Flat End, 550 lbs/in Rate - 1973-1988 Buick Regal swift-spec-r-springs 2010 Mercedes-Benz S600 (W221)These QA1 GM Pro Coil Systems for the 1973 1988 Buick Regal are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling.