SINGLE SPRING/TITANIUM RETAINER KIT (Mitsubishi 4B11T - Evo X, Hyundai G4KF - Genesis)
Designed for high rpm, BC valve springs by PAC Racing 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.