you will get so many conflicting opinions on this mate, it always opens a can of worms.
Some will say dont get a induction kit use a panel filter and mod the airbox, some use an open cone filter and some use a kit with an extent of protection from heat soak which ultimately is that negligable it wouldn't be noticeable any way.
Only real positive advice i can give is don't buy one thats too oily as it nakers the MAF (as per SOME KnN's). Other options are Green, Jetex etc