Yep, no atmospheric venting bovs will be legal, so you will need to plumb it back into intake.

Last i heard wheel size was 2inchs difference from the largest wheel your car came out with stock (so based on your tyre placard in the glove-box/door arch).

there is some rules on rolling diamiater to, but if your close to stock, then it will be fine....it adversly afects your speedo, so thats one thing to keep an eye out for.

if you want to get into details you cant change your track by more than someting like 25mm on road cars and 500mm on 4wds, so you cannot change the offset of your rims by more than 12 or something. so if you have +55 stock rims, you can only go to +43..caprece? but they rarely check this, unless there being anal or you visually have some mad sick rims that would not be legal.