These coilovers have been engineered with aggressive spring rates along with increased damping coefficient in the shocks to deliver the feedback and support needed under high-performance driving conditions. Designed specifically for performance driving, the FR-Spec coilovers feature an increased spring rate and increased damping coefficient in the shocks over the F-Spec to provide ultimate handling and vehicle control under aggressive driving conditions.

Difference between F-Spec and FR-Spec:

• More aggressive shock valve
• Fluid viscosity
• 5W for F-Spec
• 20W for FR-Spec
• Shim stack
• Stiffer spring rates
• Pillowball aluminum front top-hats
• 32-click adjustable monotube shock with internal piston and damping stack tuned for aggressive driving.
• High Temperature / higher stability shock fluid to better suit circuit driving.
• Adjustable aluminum upper pillow ball mounts to reduce suspension deflection under aggressive driving conditions while allowing for fine alignment adjustments.

General Info:

• Japanese steel tube construction using SAE1010 STKM13c
• Monotube shock design with high-performance mono-tube shock construction allowing for better rider control, fluid life, and thermal fluid stability
• Synthetic high-performance oil
• Independent ride-height adjustability separately from spring pre-load allowing the customer to set the ride height without having to worry about shock travel
• Top hats included allowing this suspension system to be a direct replacement for your factory suspension setup
• Forged 6061 anodized adjustable collars and spring seats for easy adjustment and prolonged cycle life
• Robotic welded and electroplated lower shock mounts for consistent fit and finish
• Dust boots and bump stops for shock protection and longevity
• Individually sold components allowing for replacement or upgrade of components as desired or needed
• Plastic lower spring seat isolator to aid ride height adjustment and reduce unwanted audible noise