Hi ZMANALEX,
I've seen a good few posts of you committing on about people seeing blue smoke with decats fitted. I got told today by a friend that he saw a plume of blue smoke come out of my 04 Z when I put my foot down or coming to a set of traffic lights/Junction and If I rev it up. Sometimes it happens and then it doesn't.
I have an oil catch can fitted and not seeing any excessive oil inside. Recently did new rocker cover gaskets and spark plug seals too.
Should I go back to OEM cats or get some HFC's?