Product Details
The Swift Spec-R Lowering Springs for the 2017-2021 Honda Civic Sport (FK7) lower the 10th-gen Civic hatchback for improved aesthetics and handling without sacrificing the versatile daily-driver character FK7 owners love. These Civic Sport lowering springs deliver an approximate 1.1" front and 1.1" rear drop with spring rates of 4.1 Kg/mm front and 5.7 Kg/mm rear, designed to work with the FK7's independent rear suspension and stock dampers. Made in Japan from Swift's proprietary H5S.TW material, these Civic springs provide a noticeable reduction in body roll and a sportier, more planted feel through corners.
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 | 4H918R |
| Part Name | Swift Spec-R Lowering Springs |
| Vehicle | 2017-2021 Honda Civic Sport |
| Chassis Code | FK7 |
| Spring Rate - Front | 4.1 Kg/mm |
| Spring Rate - Rear | 5.7 Kg/mm |
| Approximate Drop - Front | 1.1" |
| Approximate Drop - Rear | 1.1" |
Vehicle Fitment
- 2017 Honda Civic Sport (FK7)
- 2018 Honda Civic Sport (FK7)
- 2019 Honda Civic Sport (FK7)
- 2020 Honda Civic Sport (FK7)
- 2021 Honda Civic Sport (FK7)




