The frames are a great bit of kit. You usually have to drill them anyway to fit your seat / side mount / runner combo. The good thing about these frames is they are already pre drilled, i was amazed the amount of adjustment needed, mine look like they've got metalworm Would be good to know if these were used with standard or XL seats, not sure if there is a different in foot print between the two. Also if you know what side mount or runner was bolted to them this might make it easier when purchasing yours. Bucket seats are great in these Meganes.