Brian Crower Valve Springs and Retainer Kit Nissan 350z / Infiniti G35 VQ35DE Vehicle Model_RX-8 -Street and track torture tested

-Street and track torture tested

Torque Solution has designed this water pump pulley not only to improve performance but to surpass the quality of the original pulley

This product is designed and built with the intent of increasing the boost output of any forced induction system

Part #: F1514P

RaceComp Engineering Yellow spring rates are an aggressive 365 lbs/in front and 360 lbs/in rear that match the new OEM valving on the 2015 STI

Brian Crower Valve Springs and Retainer Kit Nissan 350z / Infiniti G35 VQ35DE Vehicle Model_RX-8 -Street and track torture testedPart #: BC0220 Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. Specs: Spring Pressure Seat: 1. 440" @ 100 lbs Open: 0. 990" @ 236 lbs Coil Bind: 0. 815" (no machine work required)