The catch can arrived, but its too bloody big to fit anywhere! I'll have to see what the intake chamber is like and if it warrants a catch can, if its horrendous then I'll have to fit it somewhere (or get an uber small one), if not I can sell it on to someone who has more space in the engine bay
On a lighter note, had the heat wrap fitted. Seems a bit cooler but who knows.
Had a chat with the mechanic, the annoying whistling noise "could" be the flexipipe in the exhaust, as one of the brackets isn't there any engine movement causes the entire exhaust to move. At this point any idea is a good one, and I haven't thought of that so I'll be replacing that bracket asap!