-4 AN Male to OEM Late Model Ford/GM/Chrysler Clutch Master Cylinder & Clutch Release Bearings; The packaging envelopes of the modern racing car become tighter each year - leaving less room for auxiliaries such as plumbing. At the same time it becomes more and more difficult to get the cars down to minimum weight. Earl's Ultra-Flex 650™ hose solves these issues. Earl's finest and lightest hose combines a woven Ultra-light Kevlar® braid with a smooth bore PTFE tubing for increased flow and convoluted outside for incredible flexibility. It also has significantly higher flow and pressure ratings than conventional convoluted PTFE hose.