D190-0901 Dinan High Performance Adjustable Coil-Over Suspension System - 2018-2023 BMW M5
F90;Threaded collars allow easy and precise front & rear vehicle height adjustments.; Up to 2" of lowering in front and 2-1/8" of lowering in back are possible depending on tire clearance but with diminished ride quality. Dinan recommends a 1" drop in front and a 1-1/8" drop in the rear to maintain a civilized ride.; Spring rates are 20% stiffer in front and 15% stiffer in the rear. Stock rear springs are progressive whereas the Dinan springs are linear. ; Helper springs are utilized in the front and rear to maintain proper suspension operation under droop conditions as well as accommodate the extensive travel of the stock shocks.; Substantial reduction in body roll.; Included suspension packers allow adjustment of bump-stop clearance to fine-tune handling and comfort.; Dinan-spec progressive bump stops improve ride quality at lowered ride heights.; Components are machined from 6061-T6 aluminum and black anodized for a sporty appearance as well as corrosion protection. ; Stock upper spring mounts are utilized for quiet operation.;
