Product Details
The Swift Spec-R Lowering Springs for the 2023+ Nissan Z (RZ34) lower the new Z's ride height for improved aerodynamics, a more aggressive stance, and optimized suspension geometry. These RZ34 Nissan Z lowering springs provide an approximate 1.1" front and 1.1" rear drop with spring rates of 11.3 Kg/mm front, tuned to complement the Z's front double-wishbone and rear multi-link suspension. Made in Japan from Swift's proprietary H5S.TW high-tensile spring steel, these Z springs deliver reduced body roll and improved cornering response for HPDE events, spirited street driving, and the growing community of RZ34 track enthusiasts.
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 | 4N915R |
| Part Name | Swift Spec-R Lowering Springs |
| Vehicle | 2023+ Nissan Z |
| Chassis Code | RZ34 |
| Drivetrain | RWD |
| Spring Rate - Front | 11.3 Kg/mm |
| Approximate Drop - Front | 1.1" |
| Approximate Drop - Rear | 1.1" |
| Quantity | 4 Springs |
Vehicle Fitment
- 2023 Nissan Z (RZ34)
- 2024 Nissan Z (RZ34)
- 2025 Nissan Z (RZ34)
- 2026 Nissan Z (RZ34)