Alot of people seem to think fuel injection doesnt enolve spark plugs?! your engine is the common one like everyone else said...
I did have a K&N on my Rt, but to be honest you would probably have as much luck putting a inbox filter on it ( look in demon tweeks etc, its a element) and just sorting a decent feed from under the car or the front of the car.
If your looking for induction noise then mayb drill the airbox, 1 say 40mm hole will let a bit of noise out, for gods sake if you do this make sure its on the OUTSIDE of the box not anywhere near the middle of the filter!!
Theres not much point moving that hot air pipe because it has a valve that shuts it off once the engines warm, so its not doing any harm at all.
you strictly speaking dont need to mention the elament filter to the insurance cos your only increasing the effieciency of the airbox, and you could just have iot to avoid the cost of replacing at each service blah,blah,blah...
Hope this helps....