If you are looking for complete control in a tunable suspension for your track driven 07-10 BMW 135/335 the Eibach Multi-Pro-R2 is what you are looking for. Eibach's Multi-Pro-R2 coilovers allow for independent rebound and compression adjustments plus external reservoirs on each corner, plus complete control of ride height (0" to -1.6") for corner balancing. An R2 equipped BMW will be a monster on the track allowing you extract as much grip as possible from your setup for your driving style.
-Drop: F: 0.0" to -2.0" / R: 0.0" to -1.6"
-10-way independently adjustable compression and rebound damping
-Remote, External Reservoirs
-Stainless Steel Braided Reservoir Lines
-Ride Height/Corner Weight Adjustability
-46mm Piston Mono-Tube
-Precise Upper Spherical Bushing Mount
-ERS Springs Available in Various Rates
-Stainless Steel Damper Bodies
-BMW 135 2008-2010
-BMW 335 2007-2010