Product Details
The Swift Spec-R Lowering Springs for the 2022+ Lexus IS500 (USE30) give the IS500's naturally aspirated 5.0L V8 the chassis support it deserves with a lowered center of gravity and optimized suspension geometry. These IS500 lowering springs deliver an approximate 1.0" front and 0.6" rear drop with spring rates of 6.5 Kg/mm front, designed to work with the IS500's Adaptive Variable Suspension system. Built in Japan from Swift's proprietary H5S.TW spring steel, these IS500 springs reduce body roll and improve corner-exit traction, letting you make the most of the V8's power on both track and street.
Swift Spec-R Technology
- Proprietary H5S.TW 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 | 4T921R |
| Part Name | Swift Spec-R Lowering Springs |
| Vehicle | 2022+ Lexus IS500 |
| Chassis Code | USE30 |
| Spring Rate - Front | 6.5 Kg/mm |
| Approximate Drop - Front | 1.0" |
| Approximate Drop - Rear | 0.6" |
| Quantity | 4 Springs |
Vehicle Fitment
- 2022 Lexus IS500 (USE30)
- 2023 Lexus IS500 (USE30)
- 2024 Lexus IS500 (USE30)
- 2025 Lexus IS500 (USE30)
- 2026 Lexus IS500 (USE30)







