Was looking to buy a Cold Air Intake for my S5. I am not going to spend $400+ on a part that I am really only buying for the sound gains. Was thinking about either the CTS or ARM, but CTS won't be shipping to the states for the near future. (ARM pretty much seems like the same design anyway.) I cannot find many reviews for the ARM system, but saw a couple people said they had fitment issues with the heat shield. Wondering if anyone out there has one of these installed?