two questions

[Cabriolet]

What brand are these studs?

I was under the impression that only ARP made studs. but i opened my 325is for the first time tonight and saw that it has studs.
would they be re-usable?

second
burning white like this means too lean?

205k+lot mile engine. markD chip, m50 injectors. running only 91 octane. yes, i replaced these crappy plugs with new correct ones.
car has a hot smell and in traffic runs just past 1/2 way. fan clutch is good. i will be replacing the thermostat really soon. have a 75C one. car has a slight lack of power, but also has a terrible bottom end squeak-ish, throwing out this engine really soon anyways.

[MR 325]

Those are Raceware studs.

[Sea Aych]

I think you're right - looks like it's been running too lean. Could explain part of the other heat issues as well?

[Cabriolet]

would you reuse these studs or is raceware crap?

[MR 325]

They're good. I think they were around before ARP actually made a kit for our engines.

Definitely can re-use.

[Cabriolet]

always helpful. thx a ton matt!