"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" Weld Star RT - Black

Weld Star RT - Black Center15" x 9" 4

It comes with a standard 70mm base flange with a range of optional stepped adapters available to allow fitment to other intake sizes

With the Aeromotive Apex jet siphon your Phantom System will have a continuous supply of fuel from the off-tank or saddle-bag to maintain optimal fuel supply

1993 MERCEDES BENZ S420 4

The High HP version has been proven to make 8-10 horsepower over the original LSXR manifold with a 500-1000 RPM shift up in peak horsepower on LS3 performance engines

"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" Weld Star RT - Black"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