TEIN EDFC damping force controller Brand TEIN (Japan) Website TEIN.co.jp Part number EDKV3-12140 The TEIN Electronic Damping Force Controller (EDFC) is an optional extra for TEIN suspension. The advantages of this system are that you can adjust the damper stiffness from inside the car, you know exactly how stiff they are set and you can use three presets for different types of driving/roads. Front and rear can be adjusted separately. I placed my controller out of sight in the arm rest. The kit contains four motors, mounting hardware and a manual Related links Modifications - Chassis TEIN SuperStreet coilovers Top