Which setup is most beneficial

Regarding an induction kit for the octavia what are people's suggestions as to which one is best.

http://item.mobilewe...Id=200624888324

Would you go for a setup like this where it locates the filter down into the inner wing behind the bumper area or one where the filter is still I'm the original airbox area with the ally shield that sits round it?

Is either more beneficial than the other as I am looking to do this soon and hopefully it won't lose me power as my trial fit of my filter earlier on today did.

Out of what people have fitted which is best as the proper skoda pipe setup I've found is at £60 but the only shield set up I've found is knocking £140 ish :(