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/20 psi 2-5/8 BOOST-VAC
Must be used with CAN-Bus Hub
Designed for competition 396-502 big-block Chevys
2015 BMW X3 XDRIVE 20D 2
Rotor has been updated to new 3
"SP" Series Dual Valve Springs with Damper (16) 1.530" OD ISK8205-SP Product:150LBS @ 1.900" Seat Pressure, 440LBS @ 1.300" Open Pressure, 1.150" /20 psi 2-5/8 BOOST-VAC"SP" Series Dual Valve Springs with Damper (16) 1. 530" OD150LBS @ 1. 900" Seat Pressure, 440LBS @ 1. 300" Open Pressure, 1. 150" Coil Bind ISK8205 SP K8205 SP The "SP" series utilises "Hi Tensile" Chrome Silicon outer material. For applications with radical cams and or moderately high rpm, where traditional chrome silicon springs prove inadequate, the "SP" series is the next highest level of endurance. All "SP" series springs are Spintron Test Proven
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