KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4 AWD (Base, 53mm Clamp) Freelander 2018 Nissan GT-R Premium (R35)

2018 Nissan GT-R Premium (R35)

adjustable suspension upgrade built for drivers who want more from their Sienna than the factory setup can offer

2008 BMW 325i (E93)

Part Number 51643-2 Part Name Sport Springs Country of Origin Germany Vehicle 2007-2009 Mazda 3 Mazdaspeed Chassis Code BK Spring Type Progressive Ride-Height Adjustable No Lowering - Front 1

1977 Lincoln Versailles (Fox)

KONI Special Active FSD Shock (Front) for 2017-2021 Audi A4 AWD (Base, 53mm Clamp) Freelander 2018 Nissan GT-R Premium (R35)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.