[dradernh]

OEM bolts aren't designed for the heat and stress of track duty. My take is that this is the sort of hardware to run if you're planning on going to the track with any regularity: https://www.bimmerworld.com/BimmerWo...d-Package.html.

I ran a set of Bimmerworld's studs and nuts on a car of mine for ~75 events and had no issues. They were still on the car when I sold it four years after the studs and nuts went on it.

Due to the initial change at each event from rollers to race tires, a 6-heat cycle tire life, occasionally switching from dry tires to rain tires, rare mistakes made by the mechanic that would render a tire unusable, and the change back from race tires to rollers before the car went into the trailer, that car tended to have 3-6 wheel changes per event. The rollers also came off at the shop after each event and went back on before loading-up to return to the track. The studs and nuts worked flawlessly for hundreds of wheel changes.

I changed my bolts out for studs and nuts as part of the initial build of my M240i and wouldn't have gone to the track without them - if only for the convenience.