HKS HIPERMAX S Pillow Coilover Kit for VA Subaru WRX / STI [80300-AF009P]

HKS HIPERMAX S Pillow Coilover Kit for VA Subaru WRX / STI [80300-AF009P]

The HKS HIPERMAX S Pillow Coilover Kit for the VA Subaru WRX and STI is engineered to deliver exceptional performance, comfort and durability for both street and spirited driving. Featuring a pillow ball front upper mount and an inverted single-tube design, this system ensures precise handling and improved steering response. With 30 levels of adjustable damping and an adjustable shock body, drivers can fine-tune ride quality and stance to their exact preference. HKS incorporates advanced Dual PVS technology for enhanced comfort without sacrificing performance, while the PNE coating provides superior resistance against wear and corrosion, ensuring long-lasting reliability.

Dual PVS

• HKS has advanced the existing preload valve system into a dual preload valve system, effectively suppressing unnecessary damping force generated during higher piston speeds. This innovation delivers significant improvements in ride comfort without compromising driving performance.

Wide Range Damping Force Adjustment

• An improved Needle jet design expands the available range of damping force adjustment, enabling the suspension to perform effectively across a wider variety of driving conditions.

Evolution of Bump Stop Rubber

• A newly developed bump stop rubber design minimizes body roll while enhancing ride comfort, achieving results that conventional hydro bump stop rubber cannot match.

Low Friction Technology

• Through the use of advanced tribology technology, HKS has achieved greater durability and reduced friction compared to conventional products. This advancement enhances both ride quality and handling performance.

Warranty

• The HIPERMAX S Series is backed by a three-year warranty, supported by optimized internal components and improved manufacturing quality.

Features

• Pillow ball upper mount (front)
• 30 levels adjustable damping
• Adjustable shock-body
• DUAL PVS
• PNE coated
• 3-year warranty

Specifications

• Spring Rate [N/mm(kgf/mm)]
  • F = 88 (9)
  • R = 69 (7)
• Spring Length (mm)
  • F = 220 (barrel)
  • R = 170 (straight)
• Upper Mount
  • F = spherical bearing
  • R = rubber

Applications

• Subaru WRX: VAG (2015-2021)
• Subaru WRX STI: VAB (2015-2021)

Notes

• After installation Subaru EyeSight may not function properly, please refer to the factory manual
• Spherical bearings are subject to wear over time, but replacement units are available for purchase separately
• This kit is a special version of the HIPERMAX S pillow upper mount, standard mount is available here

About HKS

HKS Co., Ltd. is a highly renowned Japanese automotive tuning and performance company. Founded in 1973 by Hiroyuki Hasegawa and Goichi Kitagawa, the company’s initials HKS are also derived from the name of its third partner, Sigma Automotive. With a reputation built on high-quality performance parts, HKS specializes in aftermarket components for a wide array of vehicles. The company has played a significant role in popularizing automotive tuning culture around the world. HKS is known for producing various performance-enhancing parts including turbochargers, exhaust systems, suspension components, and engine parts. Their products are engineered to provide maximum performance gains without sacrificing reliability or drivability. Over the decades, HKS has expanded its reach by participating in various motorsport events, ranging from drag racing to drift competitions and circuit racing. Their expertise in tuning and enhancing vehicles has led them to significant successes in different motorsport arenas. The commitment to research, development, and innovation has cemented HKS’s place as a leader in the automotive aftermarket industry. By maintaining rigorous quality control and focusing on the precise engineering of performance products, HKS has established strong relationships with automobile manufacturers, dealers, and enthusiasts worldwide. Sustainability and environmental considerations are also part of HKS’s commitment. They continue to innovate in ways that enhance performance while considering environmental impact. With a rich history and an unrelenting passion for pushing automotive performance to its limits, HKS continues to be a sought-after brand for automotive enthusiasts seeking top-tier performance upgrades and tuning solutions.