Nah i havn't been there......but my bro in law took his Audi A4 there with no mods and bought NEW tyres and they didn't even chek them!, and another mate took his 180 there....well actually my sister took it there for him, and all went well. They are simply a rego swap place down there and are open on certain days not all week!
I would suggest buying a stock air box(not too expensive and easy to fit), can get Marky at ET over here to put in a baffle plate in exhaust to quieten it down, but then i guess the biggest issue/hassle would be removing the BOV and then putting back on after!
Personally i'd make those changes, just to be safe than sorry, but you might/prob get away with it, BUT i'm not gonna say for sure you'll be fine, because i'd hate to see it have to get a full inspection down at Regency because i gave you the impression you'll get thru no worries!