So that anyone reading this thread does not get confused the damper shown in the picture #4 of post 19 is not a regulator. It is a damper that prevents surges in the fuel line to the engine thus maintaining a steady non fluctuating pressure and volume of fuel to the injectors. On the Crossfire the fuel pressure regulator is integral to the fuel filter. Dampers are pretty much generic so long as the size of the attached fuel line is the same. However, the Crossfire fuel filter is specific and not interchangeable because of the fuel pressure regulator function. (not to get into manual regulators and custom setups)