Tight, controlled, and confidence-inspiring for the ultimate hot hatch.
Designed to lower the Focus RS by approximately 25–40 mm while improving chassis support, the Spec-S enhances turn-in, mid-corner stability, and traction without ruining daily drivability.
Dežru Spec-S Coilovers – MK3 Ford Focus RS
The Dežru Spec-S for the MK3 Focus RS is engineered for drivers who expect real performance from their suspension without turning the car into a harsh, single-purpose machine. The RS is already a capable platform, and the Spec-S refines it further with improved composure, sharper response, and more predictable grip.
Digressive valving delivers strong low-speed damping support during braking, turn-in, and direction changes, while remaining compliant over broken pavement. Rather than chasing extreme stiffness, the Spec-S targets a balanced ride frequency around ~2.1–2.2 Hz, giving the RS a planted and controlled feel without excessive harshness.
Ride height adjustability in the 25–40 mm lowered range preserves usable travel and proper geometry. The result is a Focus RS that feels more stable, more precise, and more confidence-inspiring both on the street and at the track.
Key Features
- Digressive monotube dampers for consistent damping and strong chassis control.
- 1-way rebound adjustment to fine-tune feel for street or track.
- 400 lb/in front & 500 lb/in rear springs matched to the RS chassis.
- Linear performance springs for predictable load transfer.
- OEM-style mounting where applicable to manage NVH.
- Hand-built, dyno-matched pairs for left-right consistency.

Performance Character
The Spec-S transforms the Focus RS into a sharper, more composed machine. Body motion is reduced, grip is easier to access, and the car feels more settled in transitions and high-speed corners.
The end result is a suspension that makes the RS feel tighter and more premium, while still comfortable enough to drive every day.