Ferrea replacement special alloy single valve springs for Nissan R35 GTR. Available as a set of 24 or individually as needed.

Vehicle Fitment:
2009+ Nissan R35 GT-R VR38EDETT
• Replacement Springs for the Full Ferrea Kit (KT4016)

S10137 Single Spring Specs:
• Single Spring
• Special Alloy
• Outer Diameter: 25.19 mm
• Inner Diameter: 18.3 mm
• Seat Pressure: 90 lbs
• Open Pressure: 155 lbs
• Rate Inch:165 lbs
• Coil Bind: 22.65 mm
• Max Net Lift: 11.00 mm

Compatible With:
• Titanium Exhaust Side Retainers (E11110)
• Titanium Intake Side Retainers (E11107)
• Ferrea Spring Seat Locators (SL1116)
• Valve Locks (48 Pieces) (K10102)

Part Number:	Includes:
S10137-24	Set of 24
S10137-1	One Spring