Solo Werks S1 Coilover System - Audi B8 A4 Sedan & B8 A5 FWD - Premium Entry Level Coilover Suspension! Lowering Ranges: Front 25-75mm(1.0-3.0") Rear 25-75mm (1.0-3.0") Features: Heavy Gold Zinc Plated Housings for superb corrosion resistance Progressive rate elastomer bumpstops Black anodized spring perches - double lock ring design Platform Specific Progressive 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 + 2x helper spring 2x Rear dampers 2x Rear progressive rate elastomer bumpstops 2x Rear adjustable spring perches 2x Rear progressive rate spring 2x Spanner wrenches Installation Instructions 1oz. Bottle Boeshield T-9 Lubricant/Protectant Application / Fitments: Audi A4 '08-'15 (B8) Sedan 2WD Audi A5 8T/B8 '07-'16 2WD *All lowering ranges are approx. and will varying depending on mileage, condition, vehicle options. INSTALLATION INSTRUCTIONS: