When the Hollywood Racks Sport Rider SE2 2-Bike Platform Rack, part # HR1450Z, is installed the bike wheel hoops are actually elevated. The bike rack has a 7-inch rise in the shank.
I have attached a link to the installation video for this bike rack on a 2011 CX-7 you can check out. You can see the hitch receiver is level with the exhaust on the vehicle. With a 7-inch rise in the shank you will have no problem with the exhaust heat. view full answer...