Information from Sneed4Speed's website. The price is a shipped price.
The Sneed4Speed MINI Cooper 4 Point Roll Bar is made to fit either the R53 or R56 MINI. The Bar is made from 1.75'', 0.095" wall, DOM tubing, is NASA and SCCA legal. The main hoop, diagonal, seat belt bar and mounting plates are fully welded but the rear legs must be welded on during installation. The mounting plates can be either bolted or welded in, we recommend welding as it takes less time and is stronger. The 4 Point Roll Bar does not compromise back and forth seat movement or rear storage space; allowing you to fit all 4 track spare wheels*. Fits cars with or without a sunroof and does not come painted.
Roll Bar fits with interior side panels installed but some trimming of the plastic is required.