Lid?
and cut the air box leaving a lip of about 5/8" all around for the filter tray to sit.
installuniversity.com has the full FRA mod and lid install if you aren't sure how much to cut on both parts or how to do somthing.
if you choose to go with an aftermarket ram air kit like SSRA or FTRA or SLP CAI and the like, you'll need to cut that shroud anyways.. I noticed a difference just by doing the FRA without a lid.
good luck!




