Drop may vary depending on different factors including engine size, weight, tires, and other conditions.
Front Drop
Estimated Drop: 0.75 inch / Sway Bar: 27mm
Rear Drop
Estimated Drop: 0.60 inch / Sway Bar: 27mm
Front Spring Rate
4.7 kg/mm
Rear Spring Rate
6.3 kg/mm
GT-S ProSpec Kit: Lowering Spring + Sway Bar
Grip. Traction. Style. Unlock true street performance with the GT-S ProSpec Kit — a precision-tuned lowering spring and sway bar combo engineered for daily-driven cars that demand more. Each spring is designed with optimized progressive or linear rates to improve cornering grip, enhance braking stability, and boost entry and exit speeds through turns — all while delivering a functional, aggressive drop for a clean stance.
Paired with the ARK Performance sway bar, this kit offers tighter handling, reduced body roll, and increased confidence behind the wheel through every turn and corner.
All GT-F and GT-S ProSpec Kit is designed for maximum travel motion and useable stroke with your factory struts/shocks.
.
Items Included
2x Front Springs / 2x Rear Springs / Front Sway Bar / Rear Sway Bar / 4x Urethane Bushings (used with your OEM Bracket)
Fitments
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Drop may vary depending on different factors including engine size, weight, tires, and other conditions.
Front Drop
Estimated Drop: 0.75 inch / Sway Bar: 27mm
Rear Drop
Estimated Drop: 0.60 inch / Sway Bar: 27mm
Front Spring Rate
4.7 kg/mm
Rear Spring Rate
6.3 kg/mm
GT-S ProSpec Kit: Lowering Spring + Sway Bar
Grip. Traction. Style. Unlock true street performance with the GT-S ProSpec Kit — a precision-tuned lowering spring and sway bar combo engineered for daily-driven cars that demand more. Each spring is designed with optimized progressive or linear rates to improve cornering grip, enhance braking stability, and boost entry and exit speeds through turns — all while delivering a functional, aggressive drop for a clean stance.
Paired with the ARK Performance sway bar, this kit offers tighter handling, reduced body roll, and increased confidence behind the wheel through every turn and corner.
All GT-F and GT-S ProSpec Kit is designed for maximum travel motion and useable stroke with your factory struts/shocks.
.
Items Included
2x Front Springs / 2x Rear Springs / Front Sway Bar / Rear Sway Bar / 4x Urethane Bushings (used with your OEM Bracket)
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