Product Details

The HKS Hipermax S Coilovers for the 2013+ Lexus GS450h RWD (GRL10) are the redesigned NEW Hipermax S kit for this chassis, delivering 8 kgf/mm front and 10 kgf/mm rear spring rates through a full-length height-adjustable shock body with rubber upper mounts front and rear. 30-level 1-way damping lets you tune ride quality and grip without leaving the car.

HKS redesigned the Hipermax S line around a Flat Ride Concept, keeping the chassis level through mid-corner load transfer and improving straight-line composure over broken pavement. Every 80330-series kit is built in Japan on inverted or normal monotube dampers per application, carries HKS's 3-year or 60,000 km manufacturer warranty covering the DURA BOOTS dust boots and stabilizer links, and remains fully rebuildable through HKS.

Features

  • 30-level 1-way damping force adjustment via HKS's new WR Needle mechanism
  • Flat Ride Concept tuning: keeps the chassis level through mid-corner load transfer
  • Full-length height-adjustable shock body
  • Front and rear upper mounts pre-fitted for the application (rubber or spherical bearing as spec'd)
  • Dual Preload Valve System (Dual PVS) tuned individually per vehicle
  • Advanced Bump Rubber Plus for controlled progressive load response
  • DURA BOOTS heat, weather, and ozone-resistant dust boots (covered under warranty)
  • New HIPERMAX S-geometry stabilizer links with reduced-friction ball joints (covered under warranty)
  • Aluminum upper mounts with a shot-blasted matte finish
  • PNE thread coating for corrosion resistance and lower height-adjustment effort
  • Custom spring rates available at time of shipment: contact us to spec your kit
  • 3-year or 60,000 km manufacturer warranty, validated over 60,000 km of real-world driving
  • Fully rebuildable through HKS
  • Backed by three consecutive All Japan Dirt Trial Series titles and 50+ years of HKS motorsports development
  • Made in Japan
Specifications
Part Number 80330-AT005
Part Name HIPERMAX S GRL10 FULL KIT
Vehicle 2013+ Lexus GS450h RWD
Chassis Code GRL10
Damping Type 1-Way (30-Levels)
Ride-Height Adjustable Yes
Spring Rates - Front 8 kgf/mm (78 N/mm)
Spring Rates - Rear 10 kgf/mm (98 N/mm)
Front Damper Type Twin-Tube
Rear Damper Type Twin-Tube
Upper Mount - Front Rubber
Upper Mount - Rear Rubber
Free Height - Front 250mm
Free Height - Rear 220mm (Barrel Thread)
Overhaul / Rebuild Available
Country of Origin Japan

Notes

  • California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
2013LexusGS450hRWD
2014LexusGS450hRWD
2015LexusGS450hRWD
2016LexusGS450hRWD
2017LexusGS450hRWD
2018LexusGS450hRWD
2019LexusGS450hRWD
2020LexusGS450hRWD
2021LexusGS450hRWD
2022LexusGS450hRWD
2023LexusGS450hRWD
2024LexusGS450hRWD
2025LexusGS450hRWD
2026LexusGS450hRWD

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