At first I thought the unbolting to insert was a stupid idea. You can get the exhausts, but have to pay extra for the selenoid valve, jsut a money making scheme. In actuality its a good one where you can purchase 2 stage if needed, and if one or the other part gives up the ghost, or rusts out...
If it's anything like GMs NPP exhaust, the valve is after the exhaust. One outlet goes through the exhaust chambers, the other goes through less chambers. Almost a straight through. The valve shuts off the straight through automatically, until it's turned on, then loudness occurs.
Caliper covers also cut down on the brake dust. At least from my experience with my 2010 V6 anyways.
slos14, it was kind of rude. You could simply provide a link to the normal Google.
I have redline/Magnetic. I love it, just the right amount of color added to the interior. Stupid of ford to not have it with Race Red. That was my first choice.