Dinan Supplemental Ride Quality & Handling Kit - 2016-2020 BMW 340i/430i/440i Dinan Supplemental Ride Quality & Handling Kit - 2014-2016 BMW 428i/435i Dinan Supplemental Ride Quality & Handling Kit - 2014-2016 BMW 428i/435i F30/F32/F36 BMW X5 M F15 Not compatible with 'xi' vehicles

Not compatible with 'xi' vehicles

The rear spring rates in particular on the smaller coupe are far more aggressive than those on the M3/M4 from the factory

giving you the choice of a stealth or competition look

put the Dinan supplemental ride quality and handling kits amplify performance and comfort when paired with performance spring sets

Designed for use with D120-0491 (21mm Rear Anti-roll Bar) for proper balance

Dinan Supplemental Ride Quality & Handling Kit - 2016-2020 BMW 340i/430i/440i Dinan Supplemental Ride Quality & Handling Kit - 2014-2016 BMW 428i/435i Dinan Supplemental Ride Quality & Handling Kit - 2014-2016 BMW 428i/435i F30/F32/F36 BMW X5 M F15 Not compatible with 'xi' vehiclesInstallation labor time is 7. 8 hrs (RWD) or 8. 2 hrs (xDrive) if supplemental ride quality & handling kit is installed by itself. Installation labor time will be negligible if installed at the same time as the corresponding Dinan Spring Set. F30 F32 F36 To fully enjoy Dinan performance spring sets we highly recommend pairing them up with our supplemental ride quality and handling kits. This additional kit includes tuned, progressive rate bump stops