i got mine from a junkyard for just a few dollars, and installed it yesterday in about an hour and half.
There are 4 bolt that hold it on. Two of them (seat bottom) are 13mm, the other (seat back) are T-45 Torx
First remove the seat from the car. There are 4 10mm bolts holding it in, and one t45 torx holding the seatbelt buckle sliding assembaly to the floorpan.
After getting the seat out, take off the plastic side trim, and the two 13mm bolts should be obvious.
As your next step, unclip the seat back upholstery. There is a black clip strip running along the bottom. You cant remove the upholstory but this gives you a little more leeway to work with. For the Torx bolts on the seat back, pull up on the upholstory and foam to get to the very top one.
After removing the 4 bolts, just swap them out, and youre good to go. If you can have someone help you to get the seat back in the right spot to thread the bolts in, itll make the job even easier.