I have the BTR rollbar it's a lot less intrusive than the Autoform IMHO and it has a side bar that can be removed. It's good down to 10.00 (NHRA) if you want to see a pic click on my sig
You do loose the stock seat belts and you must cut two sections (2"X 2") out of the rear plastic cover behind the seat. I can remove the side bar in about 10 sec but that was after grinding down part of the mounting brace, as the clearances were tight (not a hard to do) makes installing the side bar a snap.