No, I took mine off. Didn't seem to do anything. Never had oil in it??? I would be more concerend about the oil clogging the meth nozzle than anything else. I have seen how it coats the IC pipes over time. Glad the Meth has some velocity when it sprays.

 

i had a catch can (weapon R) on my 03 8 and after 6 months i went to drain it and absolutely nothing came out, not even a drop. the lines had residue in them but nothing in the can.

 

So the "catch" with the catch cans, is the vendors "catch" us and our money for some snake oil? I guess It is just a worthless pretty showpiece then.