-4AN INLINE - Oil Inlet Restrictor (0.065") - For T3, T4, GT37, GT40, GT42, GT45, GTX50, GTX55 Universal Therefore HKS engineered valve springs

Therefore HKS engineered valve springs that are precisely matched to the characteristics of HKS camshafts

This is achieved through routing the wastegate pressure signal hose directly from the side of the compressor to the wastegate actuator pressure nipple and bypassing the boost control solenoid entirely

* GTX5533R

3100rpm NORMAL

More precise correction is possible for modern smaller sized turbo

-4AN INLINE - Oil Inlet Restrictor (0.065") - For T3, T4, GT37, GT40, GT42, GT45, GTX50, GTX55 Universal Therefore HKS engineered valve springsPRODUCT DESCRIPTION: 4AN Inline Oil Inlet Restrictor Fitting with 0. 065" port. 4AN Male end and 4AN Female end fitting. An excellent solution to install within an existing 4AN oil feed line. Simply install between an existing 4AN male and 4AN female connection within the oil feed line. APPLICATION NOTES: Recommended solution for Garrett T3, T3 T4, T4, GT37, GT40, GTX40, GT42, GTX42, GT45, GTX45, GT47, GTX47, GTX50, GT50, and GTX55 series