COMP Cams MUTHA' THUMPR NSR Hydraulic Roller Camshafts, MT273LL-9 (2004-2012 FORD 4.6L & 5.4L SOHC Modular 3 Valve 8 Cylinder) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS