hi im fitting my cosworth kit tomorow to my 3 door, ive seen on ebay for sale some cosworth spoiler brackets, but will i need them? or will just some sikaflex do to hold it on as i dont like the thought of drilling holes into good metal, or should i put some bolts and some sikaflex in just for safety? any one got any piks of these brackets and how they are used or if they are to any importance?