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We recommend upgrading the factory valve when running boost above stock levels
The 370Z specific Pro-Kit features a progressive spring rate and will lower the car approximately
Reduce body roll and fine tune your Evolution X's handling characteristics with Eibach Anti-Roll Kit sway bar
Note:Brian Crower rods are sold in sets of four
GSC P-D Chrome Polished Intake Valve - 35mm Head (+1mm) - Evo 1-9 / 90-98 DSM - 4G63T (Set 8) vendor_Mooresport We recommend upgrading the factoryPart #: 2004 8 When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were used in the specific applications to make sure that they have the highest flowing valve head that is available on the market today. The materials they have used have less valve distortion at the face than any of the tested designs which allow for better sealing under extreme