Originally Posted by Lemans_Blue_M
Yes, you can use the stock mounting clamp to secure the battery in one of the other holes in the floor of the trunk.
You are a genius!! The Mini Cooper, aka CSL Battery was a direct bolt in, fit like OEM, perfect fitment! My Braile LW battery would always go out on my VFE SC'd E46 M3, so the MC/CSL battery was a good compromise. Turned out to be about a 24 lbs. weight savings, not too bad for 130, bucks. I will post pics soon, really appreciate this post - doba, Lemans and everyone else. Thank you!