Number:S72741H Description:Sonnax Line Pressure Booster Kit, 15-30 PSI Increase Over OEM (Featuring an integrated chip (IC) circuit and a stronger pressure regulator spring, this unique kit delivers a progressive increase of 10 psi at lower pressure ranges and 25 psi increase at higher ranges.)   FITS (45RFE, 545RFE, 65RFE, 66RFE, 68RFE) Stage 1, Stage 2, Stage 3, Diesel Performance   Price:$100.52