The ECS Tuning Performance Coilover System provides a sport-tuned, height, damping, and body adjustable suspension with substantial performance benefits using high quality materials and coatings to replace your worn suspension, all while giving your vehicle that perfect ride height! Our ECS Coilover System provides confidence and precise control with a ride that is firm, yet compliant for the majority of enthusiasts. Average suggested lowering range of 1.5" to 2.75" PERFORMANCE FEATURES 32 levels of rebound damping adjustment Adjustable damping, monotube shocks/struts paired with optimized progressive rate coil springs gives your vehicle road-sticking grip with reduced body roll for exceptional confidence in your vehicle's handling. With your vehicle's new, lower ride height the center of gravity is now moved lower, further improving handling performance Adjustable front bodies allow you to set the ride height while maintaining correct spring pre-load Adjustable front and rear bodies allow the shock to operate in the correct valving range, regardless of ride height PRODUCT DESIGN Strut and shock bodies finished with a durable gloss black powder coat for good looks and great longevity Threaded portions are are clear zinc coated for optimum corrosion protection against rain and salt Coil springs are powder-coated Reflex Silver Metallic finish for durability Red anodized, billet aluminum lower spring seats with locking collars allow for quick, on the car, adjustability with the included spanner wrenches Integrated bump stops PRODUCT DEVELOPMENT In-house designed to give your vehicle superior handling performance, long term corrosion protection and fully adjustable ride-height, we set out for a coilover system that is made for THE enthusiasts! Installed and evaluated in-house by our Product Development team in our Wadsworth, Ohio facility, we ensured a high level of precision and quality is delivered throughout thousands of miles of long term product testing. INSTALLATION AND SUPPORT Looking for installation tips? Look no further, we put together a full installation PDF below! Full 1 year warranty Test vehicle shown lowered 1.5" from stock ride height. Lowering specs may be different depending on vehicle configuration/weight range. VEHICLE FITMENT Make Model Submodel Engine Audi B6 A4 Quattro 1.8T Audi B6 A4 Quattro 10v Audi B6 A4 Quattro V6 30v Audi B6 S4 All V8 Audi B7 A4 Quattro 2.0T Audi B7 A4 Quattro V6 3.2L Audi B7 S4 All V8