Supertech Beehive Valve Springs for a Toyota / FR-S 4U-GSE - 10.00lbs/mm

Upgrade your valvetrain with Supertech beehive valve springs for a Toyota / FR-S 4U-GSE, rated at 10.00lbs/mm for high RPM stability, precision, and extreme durability.

Attributes
Free Length	42mm
Coil Bind	19.50mm
Rate	10.00lbs/mm
Outer Spring Id	21.90mm
Inner Spring Od	20.50mm
Inner Spring Id	15.50mm

Specs
Outer Spring Id	21.90mm
Inner Spring Od	20.50mm
Inner Spring Id	15.50mm
Coil Bind	19.50mm
Rate	10.00lbs/mm