The Swift Spec-R Lowering Springs for the 2009-2020 Nissan 370Z (Z34) give the Z34”s front-mid-engine platform a lower center of gravity and optimized suspension geometry for aggressive street and track driving. These 370Z lowering springs provide an approximate 1.2″” front and 1.0″” rear drop with spring rates of 10 Kg/mm front and 10.5 Kg/mm rear, tuned to extract maximum grip from the Z”s multi-link rear suspension. Manufactured in Japan from Swift”s proprietary spring steel, these 370Z springs are proven in drift, time attack, and HPDE competition, offering reduced body roll and the snappy weight transfer that Z-car enthusiasts demand.
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 |
4N905R |
| Part Name |
Swift Spec-R Lowering Springs |
| Vehicle |
2009-2020 Nissan 370Z |
| Chassis Code |
Z34 |
| Spring Rate – Front |
10 Kg/mm |
| Spring Rate – Rear |
10.5 Kg/mm |
| Approximate Drop – Front |
1.2″” |
| Approximate Drop – Rear |
1.0″” |
| Notes |
– |
Vehicle Fitment
2009 Nissan 370Z (Z34)
2010 Nissan 370Z (Z34)
2011 Nissan 370Z (Z34)
2012 Nissan 370Z (Z34)
2013 Nissan 370Z (Z34)
2014 Nissan 370Z (Z34)
2015 Nissan 370Z (Z34)
2016 Nissan 370Z (Z34)
2017 Nissan 370Z (Z34)
2018 Nissan 370Z (Z34)
2019 Nissan 370Z (Z34)
2020 Nissan 370Z (Z34)
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