E60 seat question

[Stachless]

Hi everyone i know there are thousands of topics regarding seat conversion from non folding seats to folding. But my question is the opposite. My e60 seats are foldable but i really hate the whole interior color. I have an opportunity to buy a really good dark brown seats but they are not foldable. Would this be a simple switch or do i need extra hardware? There are levers in my trunk for the seats so i wander if that will be an issue.