KONI Special Active FSD Shock (Rear) for 2015-2018 Mercedes-Benz C-Class (W205) 850i 2009 Subaru Forester XT (SG/SH)

2009 Subaru Forester XT (SG/SH)

1998 Toyota Sienna

2017 Mazda Miata/MX-5 (ND)

1999 Toyota MR2 (W20)

5) are a performance upgrade to OE Dampers designed to be paired with the OE factory spring

KONI Special Active FSD Shock (Rear) for 2015-2018 Mercedes-Benz C-Class (W205) 850i 2009 Subaru Forester XT (SG/SH)KONI Special Active shocks for the 2015 2018 Mercedes Benz C Class (W205) 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