Product Details
The Swift Sport Lowering Springs for the 2013-2020 Lexus GS350 (GRL10) lower the GS350 for a more refined, sport-sedan stance while improving cornering composure. These GRL10 GS350 lowering springs provide an approximate 0.8" front and 0.8" rear drop, tuned to complement the stock Adaptive Variable Suspension. Made in Japan from Swift's proprietary H5S.TW material, these GS350 springs reduce body roll and sharpen steering response, giving the GS the more engaging driving dynamics that its powerful V6 and rear-drive platform are capable of delivering.
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 | 4T911 |
| Part Name | Swift Sport Lowering Springs |
| Vehicle | 2013-2020 Lexus GS350 |
| Chassis Code | GRL10 |
| Spring Rate - Front | 5 Kg/mm |
| Spring Rate - Rear | 7.5 Kg/mm |
| Approximate Drop - Front | 0.8" |
| Approximate Drop - Rear | 0.8" |



