I noticed this splitter on @mattlqx car from photos of him at Chuckwalla this weekend. Looks great and a nice option from the OEM or CF R splitters available. Probably a LOT easier to install too. I noticed they also have canards for the 2015+ Mustangs but I don't think they fit the GT350.
http://aprperformance.com/2015_mustang-front-aero/
http://shop.aprperformance.com/index.php?route=product/category&path=72_128_80_165
http://aprperformance.com/2015_mustang-front-aero/
http://shop.aprperformance.com/index.php?route=product/category&path=72_128_80_165