Lowering Range: Front 40-75mm (1.6-3.0) Rear 40-75mm (1.6-3.0) Features at a Glance: 3-Year Limited Warranty Warrants against Construction and Component Defects Heavy Gold Zinc Plated Housings Superb Corrosion Resistance, Salt Spray tested 500 Hours) Twin Tube Shock Design Gas Charged, Fixed Dampening, Independent Valves, App Specific Tuning High Tensile Chrome Silicon Wire Springs Light Weight, Less Stress, More Travel, Powdercoated Hardened Chrome Piston Rods Mirror Finished Elastomer Bumpstops Micro Cell Poly, Progressive Rate, Long Life Span (front only, rear uses OEM bumpstops not included) Height Adjustable Rear Perches Dual Lock Ring, Anodized Black Aluminum, Inc. Spanners Kit Contents: 2x Front threaded coilover dampers 2x Front Spring + 2x helper spring 2x Rear threaded coilover dampers (current version uses OEM bumpstops! not included) 2x Rear Spring + 2x helper spring 2x Spanner wrenches Step by Step Installation Instructions 1oz. Bottle Boeshield T-9 Lubricant/Protectant VEHICLE FITMENT BMW 97'-03' E39 Sedan All Eng. Does Not Fit XI (AWD) Models DOES NOT FIT M5 or M SPORT EQUIPPED MODELS*Cars equipped with tall style upper strut mount must use OEM BMW upper strut mount #31336752735 to install properly. Notes:*All lowering ranges are approx. and will varying depending on mileage, condition, vehicle options*Depending on the specifics on your particular wheel, wheel spacers may need to be used.*All kits will not retain OEM Electronic Dampening Systems