Not a huge fan of the super slammed look on a Mustang but the air ride systems are super reliable,they ride great and will even perform at the track like normal. If it's something you like....go for it. I owned a Olds for 18yrs that was slammed to the frame on a full Pro Hopper 10 switch set up but air ride is totally different. I just sold that car to my best friend about 5 months ago and will one day own it again when he decides to move on.
I am thinking of doing it. Going to put it on our 2013 GT for SEMA.
Have quite a few friends with it already and they all love it.
AirLift is the way to go. Jeremy is the guy to talk to there.
Few friends have already switched over to AIRLIFT from other air companies.