The universal oil catch tank is designed to protect the engine and improve its parameters by condensing oil vapors, which get into the inlet through the pneumothorax and are then sucked into the combustion chambers. They create carbon deposits on the throttle and in the intake manifold, which results in reduced power. 2L Catch Tank. Includes 2 sets of screw-in screws with a diameter of 9 and 15mm It can also be used without returning air to the system, in which case the attached plug and pneumothorax filter should be used.