Riaction 350z Digressive coilovers are built with the intention of being used on the track for motorsport purposes. However, because our coilovers offer 32 levels of damping adjustment, they are comfortable enough to drive on daily, as well as having the ability to go stiffer for your motorsport needs. Who says race cars can't be show cars?

The digressive rate piston will retain softer and compliant high speed compression characteristics while having relatively stiff low speed compression characteristics. This makes the coilover more compliant when going over any kind of bumps or uneven pavement, which makes the car more stable. The stiffer low speed characteristics help keep the vehicle stable in high speed performance driving which can give you more confidence at the track.

What is digressive valving?

A Digressive is the term in relation to the damper valving. This means the damper has much more low speed control in comparison to a Linear valve. This is due to the low flow rate at low shaft speeds. This results in more oil flow resistance. The resistance rate increases as shaft speeds increase, but only to a predetermined level, whereas the Linear variant continues to increase. The digressive valving then has resistance that tapers off and as the shaft speed continues to increase, the resistance remains constant. This eliminates unnecessary resistance and provides more control as the vehicle encounters irregularities in the road’s surface. The low speed shaft speed is mainly experienced through driver inputs from steering, braking and accelerating. The high resistance in these low speed movements will give much more confidence in driver feedback as well as a very stable vehicle from a more controlled weight distributing environment. This setup will do a better job of managing unwanted body motions while also still providing a comfortable ride.

Coilover Kit Features

• Full Length Ride Height Adjustment
• 32 Damping Adjustment Levels
• Mono-Tube Damper Design
• Seamless 52mm Electroplated Carbon Steel Shock Body
• O.D. 20mm Piston Rod For MacPherson Suspension
• O.D. 14mm Piston Rod For Non-MacPherson Suspension
• Unique 44mm High-Flow CNC 6061 Digressive Aluminum Piston
• Unique Thinned CNC 6061 Aluminum Floating Piston
• Polyurethane Oil Seal
• SAE9254 Cold-Wound Spring
• Multi-Thickness Valving Shims
• Unique Low-Gas Pressure Design
• 7.5w Compounded Suspension Fluid
• Fully Rebuildable

All Digressive valved Riaction kits have a lead time of 2-3 weeks from order date.