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)










