The Function-A coilover is highly customizable, all aluminum built, and plated in nickel-boron. The nickel-boron plating gives this coilover a rigid structure, increasing resistance to abrasion and high temperatures. The low frictional properties of boron also allow a more direct damping action. Optional X-Coil-R springs utilize the newfound performance of the super light weight Function-A. Both 6 and 30 levels of damping adjustment are available. Custom spring rates are available for your own custom Function coilovers. All strut type suspensions use a reverse monotube design coilover.
Street Spring Rates:
Hard Spring Rates:
- Front: 7in [178mm]
- Rear: 7in [178mm]
Notes: CZ4A (Includes rear helper spring). Rear uses a main spring + helper spring. Front units for Aluminum Rigid version include Pillow Ball type upper mounts. Only rears are Aluminum Rigid. Inverted monotube type uses a steel shell casing. Rear spring includes a main spring + helper spring (H80-1.5K).