Yes they are. They're standard for '13+, optional on '10-'12 I think.
'13 Stang - V6 MT82 - GHIG
'00 Grand Prix SE - Pink (L67 Swapped/XP Cam/3.25")
'98 Grand Prix GTP - Black ($500 toy with broken trans. )
'01 Bonneville SE - Sitting on a hillside needing attention