TEIN Street Flex & Mono Sport Coilover Suspension Dampers


TEIN has over 20 years of suspension tuning experience and is one of Japan's largest aftermarket suspension manufactures.

Street Flex: The Street Flex suspension is latest design offered by TEIN. The Street Flex is intended for a performance street driven vehicle utilizing hard rubber bushings which allow good suspension response while decrease noise to the cabin. Street Flex uses a more economical design with twin tube steel body construction that still offers a high level of suspension response.

Mono Sport: The newly introduced Mono Flex is TEIN's dual purpose street/track coil over suspension. The Mono Flex differs from the Street Flex by adding spherical bearing top mounts and a mono-tube design that increases damper response time and increases the consistency of the performance once the dampers begins to heat up from aggressive driving.

New to the TEIN line is the micro speed valve which adds a separate valve for low speed compression. In addition to better suspension response by independently tuning the damper for different damper response speeds, the MSV valve eliminates the "pogoing" during straight line constant speed (ie. driving on freeway) associated to older TEIN systems and other aftermarket suspensions.

The Mono Flex suspension is valved slightly more aggressively than the standard Flex and is ideal for street & track use.

The Mono Flex has the same 16-way adjustment and is compatible with the EDFC system.

EDFC controller:
TEIN's new Electronic Damper Force Controller allows in car adjustment of the suspension's valving. An in-car control unit (see photo) controls independent servo motors at each corner. The driver may select between user-defined pre-set levels, or adjust within a 16 position range. The EDFC system is compatible with the Type Flex and Mono Flex suspensions only.


  • Adjustable Damper (x 4)
  • Main spring (x 4)
  • Sub spring (x 4)
  • Lower spring seat (x 4)
  • Spacer spring seat (x 4)
  • Thrust washer (x 4)
  • Bump rubber (x 4)
  • Duster boots (x 4)
  • Pillow upper mount (x 4)
  • Height measuring gauge
  • Instruction manual
  • Damping effect adjusting tool (modifies damper valving for ride quality adjustment)
  • Height adjusting wrenches
TEIN Flex V Coil Over - NSX, 1991-05


TEIN Mono Sport Coil Over - NSX, 1991-05


TEIN EDFC II (compatible with TEIN Flex & Mono only)