The Superdown provides a lowered stance and improved handling to fulfill your needs to lower your car and improve its handling. Taking into consideration the factory suspension geometry, shock dampening, spring rate and ride height levels, RS-R ensures that the springs you are getting were made for your car both for performance and for comfort.
Part#: N122S
Compatibility: Infiniti 2014-2015 Q50 3.7 RWD and 2016+ Q50 3.0t Luxe/Premium/Signature RWD
Chassis code: V37
Specifications
Approximate Drop:
Front -45mm to -50mm (-1.8inch to -2.0inch)
Rear -45mm to -50mm (-1.8inch to -2.0inch)
Spring Rates:
Front 8.93kg/mm
Rear 3.67kg/mm

Q50/Q60 Red Alpha Coolant Expansion Tank
VIS 14-18 Infiniti Q50 4Dr Oem Carbon Fiber Hood
Infiniti Q50 3.7 and 3.0t Signature/Premium/Luxe AWD Sports-i Coilovers 2014+
Infiniti Q50 3.7 and 3.0t Signature/Premium/Luxe RWD Sports-i Coilovers 2014+ 












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