Well Im still waiting for mine to be delivered after two months. Should do the trick once it gets here. Of course everything is a lot easier with a 172 seeing as they actually do an airbox specifically to fit the 172, which they dont for the 16 so Im having to use one designed for a BMW 3.0 Z3.
Wayne and Simon have CDAs, theyre best to answer this but it looks like a straight swap for the original airbox and has shown gains on the rolling road.