I Did it today took a little work and alot of measurements... I recommend using the aftermarket brackets... i had maybe 4 1/2 inches over the aftermarket brackets and almost 1/3 less then the stock seats height. It wasnt to bad but i would just say buy aftermarket brackets because what i did took me 7 hours..
2012 Audi Q7 TDI S Line ABTuning 391whp588wtq
01 Turbo Focus 300+ whp
2012 Focus 19" Niches, AEM CAI, F2 Race Header, 3" Borla Dual Exit, H&Rs, Eibach Sways 183whp157wtq