when you run the front hoop throught the dash you knotch the dash so it can still be removed, also scca rules state that the you can use a non fia cert seat aslong as it is mounted to the roll bar from the back of the seat, my fabricator welded a mount on the harness bar so i can do this, its just been to cold for me to get some motivation to work on it, i love the buddy club seat, ive sat in a few diffrent sparcos and i dont like them as mutch, for drifting it works good cause its tight at the bottom and a little looser around the shoulders so i can move my arms better