MMX BMW N55 Oil Catch Can Kit (F20/F22/F30/F32)MMX BMW N55 Oil Catch Can Kit has been engineered for N55 owners who want to ensure their engines are running at optimum performance, by removing unwanted oil from the PCV (Positive Crankcase Ventilation) system before it can be recirculated back into the intake. Higher mileage engines and those particularly that utilise direct injection are known to suffer with sludge and carbon build up on the backs of the inlet valves, but by removing the deposits