The AM version is good, as is the foose version..and also the version from Roush. I have the 7 bar upper grille from..."mr body kit". All 4 x versions look the same. The mr body kit version mounts in 6 x places, the roush version only mounts in 4 x places.
IMO, the oem upper grille on the 10-12 cars is useless....esp if a blower is used. The oem upper grille on the 10-12 cars is mostly blocked off. Any of these above 7 bar grilles will work superb, for increased airflow. They will also flow a lot more air vs the boss version.
The 7 bar grille also solves another issue, the oem..'snorkel' at extreme right side is now fully uncovered and exposed. That's the aprx 2" wide x 6" tall air intake from grille to the oem airbox. My boost went up a bit on the hwy after the 7 bar grille was installed. It eliminates 2 x 90 deg bends with the oem upper grille setup. Increased airflow through my Roush 18" tall x 21" wide HE is readily apparent. It now gets hit with air from both upper + lower grilles.
But you lose the oem upper foglamps... which actually worked pretty good....except in a real fog.