The OEM oil pump is prone to front main seal failure under high boost conditions. PHR modifys the oil pump to reduce pressure at the front main seal, raise oil pressure to increase internal flow, and check and clearance the rotor assembly. All pumps are hand-modified to ensure the highest quality.
Optional Addon: OE pumps are prone to leaking from the relief valve cap straight from the factory, something you won't discover until you fire your fresh build up for the first time. PHR has CNC-machined their own cap with a double o-ring seal, helping you avoid a costly and time consuming dissasembly process to get to a leak. Add to any oil pump order.
CLICK HERE FOR SOME GREAT INFORMATION REGARDING OIL PRESSURE ON THE 2JZ