Description HLA Pressure Regulator * Actively Regulates Lash Adjuster Supply Pressure to a Constant 15psi. * Accomplishes this by Restricting Flow Instead of Dumping Extra Pressure like the JDM Regulator. * Reduces Oil Flow Into the Head, Keeps More Oil in the Pan. * In Some Instances can Greatly Improve Oil Pressure at the End of a 1/4mi Pass. See Results from the Kiggly Racing Drag Car * Air Bleed at the Highest Point Helps Oil Quality and Aeration to Lash Adjusters. * Fits all 4G63 Including DSM and EVO 8/9
