The Factory Race Series 2.5 Internal Bypass shock delivers patented race-dominating position sensitive damping technology and performance in a hassle free bolt-on kit. Patented, position sensitive internal bypass technology contains internal passages that allow fluid to bypass the piston through regulated ports as it moves through the travel. They allow for a plush predictable ride over normal off-road driving conditions and also have the ability to ramp up damping force for extreme use.

Taking inspiration from off-road racing, the Factory Race Series rear upgrade kit for the Gen 2 Raptor utilizes the same technology and parts found on the top race-winning off-road machines, including External Bypass position-sensitive damping, Quick Adjust Bypass (QAB), and an External Cooling System (ECS2).