Product Details

The Swift Sport Lowering Springs for the 2018+ Lexus LS500 (XF50) transform your XF50 LS500 from a plush highway cruiser into a more connected, confidence-inspiring driver's car without sacrificing the refinement Lexus owners expect. These LS500 lowering springs deliver an approximate 1.2" front and 1.2" rear drop with spring rates of 4.3 Kg/mm front and 2.4 Kg/mm rear, carefully calibrated to work within the XF50 platform's OEM shock valving range. Made in Japan using Swift's proprietary H5S.TW spring steel, these XF50 lowering springs reduce body roll through corners and eliminate the floaty highway feel while preserving the LS500's signature smooth ride quality.

Swift Sport Spring Technology

  • Proprietary H5S.TW high-tensile spring steel, manufactured in Japan
  • Designed to lower within each vehicle's usable shock stroke range
  • Fewer coils reduce unsprung mass and eliminate coil bind
  • Quicker transient response for a smoother ride over rough surfaces
  • Vehicle-specific tuning preserves each car's intended ride character
  • Bump rubber integration prevents suspension bottoming out

Features

  • Sportier stance with reduced wheel gap
  • Improved handling with reduced body roll
  • Comfortable ride quality preserved for daily driving
  • Lower center of gravity for better cornering confidence
  • Compatible with OEM and aftermarket shocks/struts
  • Direct bolt-on installation with no modifications required
Specifications
Part Number 4T923
Part Name Swift Sport Lowering Springs
Vehicle 2018+ Lexus LS500
Chassis Code XF50
Spring Rate - Front 4.3 Kg/mm
Spring Rate - Rear 2.4 Kg/mm
Approximate Drop - Front 1.2"
Approximate Drop - Rear 1.2"
Quantity 4 Springs
Vehicle Fitment
  • 2018 Lexus LS500 (XF50)
  • 2019 Lexus LS500 (XF50)
  • 2020 Lexus LS500 (XF50)
  • 2021 Lexus LS500 (XF50)
  • 2022 Lexus LS500 (XF50)
  • 2023 Lexus LS500 (XF50)
  • 2024 Lexus LS500 (XF50)
  • 2025 Lexus LS500 (XF50)
  • 2026 Lexus LS500 (XF50)

Reviews / Q&A

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
100%would recommend these products
6 reviews
  • TT
    Toshiaki T.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2021+ Acura TLX Type S
    Rated 5 out of 5 stars
    Great!

    Loved the amount the car dropped (not too much), feels OEM, easy to install, happy with the springs and the service from Springrates.

  • HM
    Harvey M.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2021+ Acura TLX Type S
    Rated 5 out of 5 stars
    Perfect ride!

    After adding a new set of tires and wheels with a bigger offset to push the wheels out I needed a set of lowering springs to set them off and you had just what I needed. Got the installed and an alignment done and now every time I get in the car it feels like a new car to me. Improved not only the looks and handling, but also the ride. Firm, but not harsh and the electronic damping system on my 2023 Acura TLX Type S still works perfectly. Highly recommend!

  • KH
    Khoa H.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2009-2020 Nissan 370Z (Z34)
    Rated 5 out of 5 stars
    370 swift springs and koni shocks

    Loved it, Springrates is very legit and shipped mine out quickly, got it in a couple days!

  • JG
    Joshua G.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2013-2018 Ford Focus ST (MK3)
    Rated 5 out of 5 stars
    Perfect

    Good amount of drop one inch just what i was looking for. Nice ride quality for a daily car but way improved handling i love these springs ❤️

  • RB
    Ryan B.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2020+ Toyota Supra (A90)
    Rated 5 out of 5 stars
    Spec-R Springs A90 Supra

    Delivery was super fast. Springs ride quality is great and the drop is perfect on the Supra. Couldn’t be happier with my purchase!

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