KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4/S4 AWD (49mm Clamp) M235i xDrive Gran Coupe 2025 Lexus RC300 (ASC10)

2025 Lexus RC300 (ASC10)

HKS Hipermax S coilovers for the 2002-2007 Subaru WRX (GDA) are engineered for drivers who want genuine performance gains without giving up daily-driver comfort

2016 Ford Explorer (U15 (2nd-3rd gen))

510 Part Name Torsion Bar Key Vehicle 2002-2006 Chevrolet Avalanche 1500 Front Lifted 1 - 3 in

These 4 Series coilovers arrive tuned for the 4 Series chassis and ready to bolt in — no break-in period

KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4/S4 AWD (49mm Clamp) M235i xDrive Gran Coupe 2025 Lexus RC300 (ASC10)KONI 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.