The front seats are really easy to remove. All you have to remove are two torx bolts on the back side of the seat tracks. Once they're removed push the seat forward and pull up. Its like a hook and bolt system. Personally if you are trying to use 4pt. just leave the stock seat belt system in and forget about it. You will have to firgure out something for the seat belt warning system though.

 

thanks for this man, I didn't know how to do it exactly, I thought there was 4 bolts holding in the braces tho. thanks man!