Hello Lads I'm just after alittle advice please, noticed today my catch can filter does this in the video below, little bubbles coming out, and I'm wondering is it normal, the low down is, car is running great, doesn't use oil etc, no smoke etc, Catch can isn't full either Catch can set up - the usual, race spec rocker cover both fittings going straight to catch can, inlet nipple blocked off ( seems most do it this way) an thinking the system needs to breath more, that filter is only a 12mm one, anyway what do I know that's why I am here to ask please guys. Thanks Pat https://youtu.be/qCHwWFNWw2Y