Solo Werks S1 Coilover System - A4 (B6/B7) Avant 2wd and Quattro - Premium Entry Level Coilover Suspension! Lowering Ranges: Front 40-80mm(1.6-3.35") Rear 40-80mm (1.6-3.35") Features: Heavy Gold Zinc Plated Housings for superb corrosion resistance Progressive elastomer bumpstops Black spring perches - double lock ring design Platform Specific Spring Rates and Matched Valving 3 year Limited Warranty Each Kit Contains: 2x Front threaded coilover dampers (w/ dual locking spring perches) 2x Front spring (Linear Rate) + 2x helper spring 2x Rear dampers 2x Rear adjustable spring perches 2x Rear springs (Progressive Rate) 2x Spanner wrenches Step by Step Installation Instructions 1oz. Bottle Boeshield T-9 Lubricant/Protectant Application / Fitments: Audi A4 '01-'08 (8E/B6-B7) Avant 2wd and Quattro All engines (non S4) including Cabrio INSTALLATION INSTRUCTIONS: *All lowering ranges are approx. and will varying depending on mileage, condition, vehicle options.