My Car
Find Parts
What's New?

TEIN Suspension EDFC Active Controller kit (For use with EDFC Motor Kit), EDK04-P8021

Part Number:
TEIN Suspension
Product Line:
EDFC Active Controller Set
Vehicle Fitment:
TEIN Suspension EDFC Active Controller kit (For use with EDFC Motor Kit), EDK04-P8021



6% below retail


EDFC ACTIVE makes it possible to adjust damping force with ease from the driver's seat, by controlling stepping motors installed on each shock absorber. Built-In G-Sensor allows G-actuated automatic adjustment of damping force while driving. Additional automatic speed-sensitive damping force adjustment feature is available with the use of optional "GPS kit" (sold separately).

* This product does not adjust vehicle ride height.


More Aggressive Damping Force Control

To control damping force more actively according to driving conditions, 2 automatic adjustment modes are available; "G-actuated automatic adjustment mode" and "speed-sensitive automatic adjustment mode (optional GPS kit is required)". Damping force adjustment levels can be set in 3 different types; 16-level, 32-level or 64-level.

Simplified Installation/Wiring

Motor driver units, located at front and back of the car, and controller unit are connected wirelessly, to reduce troublesome wiring works. Controller unit has all the sensing functions, with built-in optical sensor to detect brightness in its surroundings and connectivity with optional GPS kit to detect vehicle speed. The power supply cable is the only wiring required between the controller and the vehicle, making it possible and easier to install onto wider varieties of vehicle models. Well-considered size and design enable controller unit to be installed to most desirable position easily without any bulky wiring.

Better Visibility & User-Friendliness

Larger display is used for improved visibility and one-dial operation allows for easier handling.

Useful Added Features

EDFC ACTIVE offers lots of extra features including adjustable display color and G-force display. In addition, with optional GPS kit installed, vehicle speed, altitude, longitude, latitude, trip meter and/or clock can be displayed.


One controller unit can control up to 8 motors, with additional motor driver unit installed. This comes in handy for damper kit with separate compression/rebound adjustment.

Customer Questions


Does it fit stock si suspension with springs??


To use the EDFC, you would need to have a Tein suspension kit with which the EDFC is compatible, such as a Tein SA or Flex kit.

Q:Can the GPS kit be integrated with some sort of vehicle security for tracking purposes in the even of a theft?

Not to our knowledge, no. Although high level computer science might allow such capability.

Customers Also Bought


Performance / Function:
Craftsmanship / Quality:


  • Excellent product and worth the price! January, 4
    By Dave, Grocery Getter

Rate and Review