HKS Hipermax S Coilovers 2005-2009 Legacy GT | 7 kgf/mm Spring Rate | Adjustable Coilover Suspension
Overview
The HKS Hipermax S Coilovers for the 2005-2009 Subaru Legacy GT (both wagon and sedan) offer a refined suspension upgrade designed to enhance ride comfort and handling precision. These coilovers are engineered for enthusiasts seeking a balanced suspension setup that delivers both everyday drivability and spirited cornering performance. With a front and rear spring rate of 7 kgf/mm, the Hipermax S provides a firm yet compliant ride tailored to the Legacy GT’s chassis dynamics.
HKS applies over 50 years of motorsports expertise to develop the Hipermax S, incorporating their proprietary FLAT RIDE CONCEPT (FRC) to soften initial suspension input and reduce harshness over small road imperfections. This approach ensures a smooth and natural vehicle attitude during cornering while maintaining street-level comfort. The coilovers feature advanced components such as the WR Needle wide-range damping adjustment and inverted monotube shock design, reflecting HKS’s commitment to precision engineering and durability.
For Subaru Legacy GT owners, this suspension system offers a significant upgrade in handling confidence without sacrificing daily comfort. The broad damping adjustment range allows drivers to fine-tune their setup for various driving conditions, from city streets to winding backroads. The inclusion of durable materials and rebuildable design ensures long-term reliability, making the HKS Hipermax S a practical and performance-oriented choice for Legacy enthusiasts.
Features & Specifications
This HKS Hipermax S Coilover Suspension is engineered specifically for the 2005-2009 Subaru Legacy GT, featuring a 7 kgf/mm spring rate front and rear. Constructed with high-grade aluminum and steel components, it delivers a balanced ride quality and precise handling for Subaru enthusiasts seeking enhanced driving comfort and adjustability.
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Brand: HKS
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Product: Hipermax S Coilovers
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Part Number: 80330-AF005
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Fitment: 2005-2009 Subaru Legacy GT (Wagon and Sedan)
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Material: Aluminum upper mounts, steel springs and shock bodies
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Finish: Shot-blasted matte texture on upper mounts, PNE coating on threads
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Construction: Inverted monotube shock absorber, single tube design, welded assembly
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Origin: Japan
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Spring Rate (F/R): 7 kgf/mm front and rear
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Damping Adjustment: 30 levels adjustable with WR Needle wide-range mechanism
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Ride Height Adjustment: Shock body length adjustable with PNE coating to prevent thread seizure
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Upper Mount Type: Aluminum with reinforced rubber, pillow-ball mount options available
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Warranty: 1-year limited warranty
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Additional Features: Dual PVS (Preload Valve System), DURA boots with enhanced durability, advanced bump rubber plus
Key Benefits
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Ride Comfort: FLAT RIDE CONCEPT softens initial suspension input for smooth response over small road imperfections
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Handling Precision: Inverted monotube design and 30-level damping adjustment provide confident cornering and stability
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Adjustability: Wide-range WR Needle damping allows fine-tuning for diverse driving styles and conditions
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Durability: High-quality materials, PNE coating, and DURA boots ensure long-lasting performance and corrosion resistance
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Fitment: Designed specifically for the 2005-2009 Legacy GT wagon and sedan for optimal chassis integration
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Rebuildable Design: Supports maintenance and longevity with available overhaul services
What's Included
- 1× HKS Hipermax S Coilover Set (front and rear)
- Aluminum upper mounts with reinforced rubber
- Adjustable springs with spring rate markings
- Mounting hardware and bump rubber plus components
- Installation instructions
Installation & Compatibility
Installation of the HKS Hipermax S Coilovers requires moderate mechanical skill and common suspension tools. While the coilovers are a direct fit for the 2005-2009 Subaru Legacy GT wagon and sedan, professional installation is recommended to ensure proper alignment and torque specifications. The PNE coating on threads reduces the risk of thread seizure during height adjustment, simplifying setup. No major modifications are necessary, but alignment after installation is essential to maximize handling benefits. The wide damping adjustment range allows drivers to tailor suspension characteristics without additional tuning equipment.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific Legacy GT model and year
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