Swift Spec-R Lowering Springs for 2015+ Lexus RC F (USC10)

Category: SKU: LCK954601

$119.25 $397.50

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The Swift Spec-R Lowering Springs for the 2015+ Lexus RC F (USC10) bring the RC F”s ride height down to match its naturally aspirated V8 performance, improving both aesthetics and high-speed handling. These USC10 RC F lowering springs deliver an approximate 1.3″” front and 1.0″” rear drop with spring rates of 9 Kg/mm front and 16 Kg/mm rear, designed for the RC F”s Adaptive Variable Suspension. Built in Japan from Swift”s proprietary high-tensile spring steel, these RC F springs provide a lower center of gravity and reduced body roll for more confident braking zones and corner entry at track days.

Swift Spec-R Technology

  • Proprietary high-tensile spring steel, manufactured in Japan
  • Optimized ride height to maximize suspension geometry at lowered position
  • Increased spring rates tuned to usable shock stroke for balanced performance
  • Fewer coils reduce unsprung mass and completely eliminate coil bind
  • Quicker transient response for improved traction and road feedback
  • Vehicle-specific bump rubber engineering to prevent bottoming out
  • Features

  • Track-proven in HPDE and SCCA competition
  • Lowered center of gravity for improved cornering grip
  • Reduced body roll and sharper handling response
  • Comfortable enough for daily driving
  • Compatible with OEM and aftermarket shocks/struts
  • Direct bolt-on installation with no modifications required
  • Specifications
    Part Number 4T914R
    Part Name Swift Spec-R Lowering Springs
    Vehicle 2015+ Lexus RC F
    Chassis Code USC10
    Spring Rate – Front 9 Kg/mm
    Spring Rate – Rear 16 Kg/mm
    Approximate Drop – Front 1.3″”
    Approximate Drop – Rear 1.0″”
    Notes –
    Vehicle Fitment
  • 2015 Lexus RC F (USC10)
  • 2016 Lexus RC F (USC10)
  • 2017 Lexus RC F (USC10)
  • 2018 Lexus RC F (USC10)
  • 2019 Lexus RC F (USC10)
  • 2020 Lexus RC F (USC10)
  • 2021 Lexus RC F (USC10)
  • 2022 Lexus RC F (USC10)
  • 2023 Lexus RC F (USC10)
  • 2024 Lexus RC F (USC10)
  • 2025 Lexus RC F (USC10)
  • 2026 Lexus RC F (USC10)
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