This is KW's top of the range kit designed for street cars. Separate, 12 way compression and 16 way rebound adjustability to fine tune the ride exactly to your preference, or to optimize modifications like weight, tires, or additional bracing. Right out of the box, the dampers are preset to baseline response settings determined by KW as an optimal starting point for your Audi RS6. Micro tuning from that point to meet any need is fast and easy. Variant 3 coilovers work within an approved lowering range that maintains proper suspension function and travel after lowering, usually 10-50mm. Ride height adjustments are ultra smooth using dirt repelling, trapezoid shaped shock body threads and collars. This thread design requires much less force turning the collars with a supplied spanner wrench. All corrosion resistant parts are mounted to stainless steel struts for a long life of performance. Audi coilovers and suspension kits by KW at MGC, you'll wish you did it sooner.