I Havnt bothered with a catch can to be honest as it's a dirty diesel I've just bloked the pipe on the inlet with a bung and venting the crankcase breather to atmosphere out of a long hose down the back of the engine.
Still running standard power on yours? I've had mine remapped to 182bhp 420nm torque, got SFS hoses and allard EGR delete, and made up my own 1.8t pancake replacement as my standard one was leaking boost baaaadly!
Next time I'm in the area might give you a shout.
Also I think from what I've gathered some driveshaft setup a differ from others as I couldn't really
lower mine much at all without the shaft rubbing through the boost pipe on the pancake.
I bought the full
lower replacement pancake setup from SFS and it fitted with a bit of fettling but even at standard ride height the driveshaft touched the turbo outlet pipe once it was on the floor and wore a big hole in it within minutes
.
Sfs said they had the
problem before and certain ones have a larger shaft and it won't fit. They refunded me fully and I made my own using a 1.8t pipe similarly to how you did yours.