In a 180 reversal its now being rumoured the S550 actually gained weight with the redesign, not shedding as was believed. From Steeda:
HMMMMMMMOur work is cut out for us because unbeknown to most Mustang aficionados (and not “officially” confirmed by Ford for obvious reasons), the 2015 Mustang ended up gaining 200-300 pounds in this remake – and with weight being the “enemy of performance”, there are plenty of challenges needed to ensure that the 2015 iteration of America’s favorite Pony Car isn’t left at the starting line spinning its wheels against the competition.
That is where Steeda Autosports will make a big difference.