Our Unknown Performance catch can/breather box uses -8AN black nylon braided line and fittings (included) to completely eliminate the factory PCV system, keeping oil vapor out of your intake manifold and combustion chamber. The box is internally baffled to promote air/oil separation. The 1 1/2” breather filter allows for improved ventilation of the crankcase. This breather box is essential for engines running FI as well as a great option for N/A applications. Brackets are custom made to fit VQ35DE/Rev-Up/HR and VQ37VHR vehicles.
The complete breather box (powder-coated to customers color preference) along with complete lines and fittings will be $375 shipped anywhere in the lower 48 states. Or 325 left in a raw Aluminum finish.
