HKS HiperMax IV GT Spec-A Coilovers 2008-2014 STI

Description:
The product concept for MAX IV GT series is "Ultimate Street Damper". This Spec-A is a further ultimate damper. The low spring rate and sufficient stroke provide better ride quality for street use, and its adequate damping force allows easy handling. Without reference to the concept of the standard sports suspension, HKS made Spec-A as the optimal street sports suspension.

Features:
- Single Tube Damper Design
Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride.
- Dust Boot
Protect the shaft from the flying stones.
- PNE Coating
Using this special surface coating provides 5 times better durability over standard galvanizing. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.
- "M Shaft"
With the new design of cylinder shaft since the HIPERMAX M-1, MAX IV increased the cylinder shaft size to have a firm damping even at a little stroke range because of the optimized oil pressure characteristic. We mainly adopted this to the rear damper that can have a better driving experience.
- New Design Needle
Newly designed needle has been used to revise the very low speed and middle and high speed dampening which is key to a comfort ride.
- Reduction of Unsprung Weight
In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminium. (Not for all vehicles)
- 30 Step Damping Force Adjustment
30 levels of dampening adjustment allow fine tune adjustment for street or circuit.
- Secured Effective Stroke Length
For a vehicle height adjustment type suspension, the wide adjustable range is one of advantages. "MAX IV GT" and "S-style" series have wider vehicle height adjustable ranges for a wide variety of purposes of use. However, for "MAX IV GT Spec-A", unused range for vehicle height adjustment is utilized in the effective stroke length for ride quality improvement and higher and more stable driving performance.
- New Design Bump Rubber
Newly designed bump rubbers act as sub-springs across a wide bump range enabling the main spring rate to be reduced which provides the stable and superior driving performance.

Specs:
- Front Rear 30 Steps of Adjustments
- Front Upper Mounts = Adjustable Upper Pillowball
- Rear Upper Mounts = Reinforced Rubber
- Damper Type = Single Tube

Applications:
2008-2014 STI