I bought my 2010 Mustang GT back at the end of Aug.
So far I've done the following mods:
SLP LM Catted X-pipe
Magnaflow Catback
Americanmuscle.com 93 Octane custom tune w/ SCT tuner.
I have sitting in my closet FRPP 3.73 gears, and Steeda Sports lowering springs.
Which brings me...