The Swift Spec-R Lowering Springs for the 2015-2021 Subaru WRX STI (VA) optimize the VA STI”s suspension geometry for competitive driving while giving it the low, aggressive stance the platform deserves. These VA WRX STI lowering springs deliver an approximate 1.0″” front and 1.0″” rear drop with spring rates of 6.3 Kg/mm front and 7.4 Kg/mm rear, tuned for the STI”s Bilstein dampers and DCCD all-wheel drive. Made in Japan from Swift”s proprietary spring steel, these STI springs provide quicker weight transfer, reduced body roll, and improved traction for autocross, rally-cross, and HPDE track days.
Swift Spec-R Technology
Proprietary 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 |
4F914R |
| Part Name |
Swift Spec-R Lowering Springs |
| Vehicle |
2015-2021 Subaru WRX STI |
| Chassis Code |
VA |
| Spring Rate – Front |
6.3 Kg/mm |
| Spring Rate – Rear |
7.4 Kg/mm |
| Approximate Drop – Front |
1.0″” |
| Approximate Drop – Rear |
1.0″” |
| Notes |
– |
Vehicle Fitment
2015 Subaru WRX STI (VA)
2016 Subaru WRX STI (VA)
2017 Subaru WRX STI (VA)
2018 Subaru WRX STI (VA)
2019 Subaru WRX STI (VA)
2020 Subaru WRX STI (VA)
2021 Subaru WRX STI (VA)
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