Product Details
The Cusco Sport TN-S Coilovers for the 2015-2021 Subaru WRX STI (VAF) give you independent 24-level compression and rebound damping control with 576 possible combinations, delivering motorsport-level tunability you can still live with every day. With monotube construction, 8 Kg/mm front and rear spring rates, and rubber upper mounts for street comfort, these WRX STI coilovers handle both commuting and track days.
The VAF STI lives a dual life, and the Sport TN-S's independent compression and rebound circuits let you optimize for both roles. Dial back compression for compliant street riding over rough pavement, then stiffen both circuits for HPDE events where the EJ25T's torque demands control. Rubber upper mounts preserve cabin refinement for the commute. For WRX STI owners who want Cusco coilovers with competition-level adjustability that still fits within racing regulations prohibiting external reservoirs, the TN-S is the precision choice.
Features
- 24-Level independent compression and rebound damping (2-Way)
- 576 possible damping combinations
- Monotube shock absorber with high-pressure nitrogen
- Rubber upper mounts for street comfort
- Full-length adjustable threaded cases
- Street use specification
- Made in Japan
Specifications
| Part Number | 6A1 64W CN |
| Part Name | Cusco Sport TN-S Coilovers |
| Vehicle | 2015-2021 Subaru WRX STI |
| Chassis Code | VAF |
| Engine | EJ25T |
| Drivetrain | AWD |
| Damping Adjustment | 2-Way (24 levels each) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 8 Kg/mm |
| Spring Rate - Rear | 8 Kg/mm |
| Camber Plates - Front | Yes (Pillow Ball) |
| Camber Plates - Rear | No |
| Notes | WRX STI 4-door sedan; street use spec |
Vehicle Fitment
- 2015 Subaru WRX STI (VAF)
- 2016 Subaru WRX STI (VAF)
- 2017 Subaru WRX STI (VAF)
- 2018 Subaru WRX STI (VAF)
- 2019 Subaru WRX STI (VAF)
- 2020 Subaru WRX STI (VAF)
- 2021 Subaru WRX STI (VAF)

