u/Interesting-Ring7642

Hey, plan on buying an older X3M40i. Has anyone had hefty builds or things fail that has been drastic? I'll probably be within the 30-50k mile range when purchasing, what scares me is that mostly all of them for sale are sold around that mileage.

I've heard nothing but great things from everyone thats owned a B58, but I get somewhat skeptical. I don't think I'll tune the car at all, probably just an exhaust and I don't really beat on my cars.