Spirited weekend track drives do not have to sacrifice daily driving comfort or performance.  Designed for the performance enthusiast in mind, the RS-R Sports-I coilover system provides a comfortable ride for everyday use, yet is sufficient enough for those effervescent track days.
 
Part#:  XBIBM007M
Compatibility: 2006-2012 BMW 335i
Chassis code: WB35 (E92)
Preset Approximate Height From RS-R:
Front -10mm to -15mm (-0.4inch to -0.6inch)
Rear -20mm to -25mm (-0.8inch to -1.0inch)
Maximum Adjustment Ranges:
Front -15mm to -40mm (-0.6inch to -1.6inch)
Rear -15mm to -55mm (-0.6inch to -2.2inch)
Recommended Adjustments for Optimal Ride-ability:
Front +10mm to -35mm (+0.4inch to -1.4inch)
Rear 0mm to -55mm (0.0inch to -2.2inch)
Spring Rates:
Front 7.00kg/mm
Rear  9.00kg/mm
Dampers are 36 way adjustab