Solo Werks S1 Coilover System - A4 Sedan 2wd & Quattro (B6/B7) - Premium Entry Level Coilover Suspension Lowering Ranges: Front 40-80mm(1.6-3.35") Rear 40-80mm (1.6-3.35") 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 Height Adjustable Rear Perches Dual Anodized Black Aluminum, Inc. Spanners Kit Contents: 2x Front threaded coilover dampers 2x Front Main Spring + 2x helper spring 2x Rear dampers 2x Rear adjustable spring perches 2x Rear springs Spanner wrenches Step by Step Installation Instructions 1oz. Bottle Boeshield T-9 Lubricant/Protection Application / Fitments: Audi A4 '01-'08 (8E/B6-B7) Sedan 2WD & Quattro All eng. A4 Avant 2wd and Quattro All engines #S1AU002 INSTALLATION INSTRUCTIONS: 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