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This is the R-SPG spring-specification version of the circuit-focused HKS HIPERMAX R for the GR Corolla, built on the same single-tube inverted coilover platform with 30-level damping and front/rear pillow-ball mounts. HKS's Super Response Fluid, Low Vibration Springs and spring retainers deliver precise, stable response for high-grip track use that stays streetable. Front camber adjusts up to roughly 4 degrees from the wheel well and rear damping adjusts without removing the shock. Confirm the exact R-SPG spring rates with HKS before ordering.
Details: R-SPG spring-specification version of HIPERMAX R; Single-tube inverted monotube; 30-level damping; pillow-ball mounts (front & rear); Front camber adjustable ~4 deg; Super Response Fluid + Low Vibration Springs; Overhaul / spec-change available; 2yr / 40,000km warranty
Fitment: 2023+ Toyota GR Corolla (GZEA14H) — R-SPG spring-specification version of the Hipermax R; confirm exact spring rates with HKS before ordering. Photo is the HKS Hipermax R coilover (shared catalog image).
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