Mishimoto 03-07 Ford 6.0L Powerstroke Baffled Oil Catch Can KitHigh output engines require high flow crankcase ventilation. More air and fuel going into the cylinder means more blow by working its way past the piston rings and traveling around your intake system. All that volume needs room to flow, and if you? re using a catch can, it better flow well too. Luckily, Mishimoto has created a catch can that meets those needs. Our high flow catch can utilizes a high capacity bottom with a 5. 3 fl. oz. capacity. The