Just raised my passenger seat.
I just put a 3/4 inch lift in my passenger seat on my 2011 mustang and it was easy and my seat is now at the perfect height. The key was driving out the factory pressed in 10mm studs and replacing them with larger and longer 7/16 grade 8 bolts. If you put a large socket over the factory 10mm stud flared head for suport of the sheet metal then whack the thread side with a hammer it will come out. You can also put a long extension on the socket so you can rest it on the ground for more support when you hit it. The blocks are made out of aluminum. Worked so well I almost think I should make kits for this and sell them. Here are some pics
2011 V6 Mustang base auto, 3.31 gears, BAMA 92s tune, Drop in K&N