KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4 AWD (Base, 53mm Clamp) Tredia Yellow Speed Racing Inverted Pro

Yellow Speed Racing Inverted Pro Street Coilovers for the 2009-2017 Volkswagen Passat CC deliver a high-performance street suspension upgrade with inverted front strut technology for increased rigidity and reduced unsprung weight

1996 Pontiac Firebird

Chassis RD4/RD5/RD6/RD7 Damper Model Track Series Damping Adjustability 1-Way: Rebound and Compression Damper Size - Front 52mm diameter Damper Size - Rear 50mm diameter Spring Rates - Front 8

The Stance XR1 coilovers drop the F80 chassis to a tunable ride height while keeping your factory suspension geometry intact

KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4 AWD (Base, 53mm Clamp) Tredia Yellow Speed Racing Inverted ProKONI Special Active shocks for the 2017 2021 Audi A4 AWD use KONI's patented Frequency Selective Damping (FSD) technology to deliver two damping curves in one fixed shock soft for low frequency road inputs (comfort) and firm for high frequency body motion (control). The result is a daily driver that feels composed without compromising ride quality. FSD reacts to the road, not to a driver setting, so there's nothing to adjust and nothing to wear out.