[Turk]

Most BMW, Mercedes, Porsche stores who have invested in the Vibration Reduction Machines by Hunter and alike (fancy name for wheel balancer) can do it.

There are tire stores who have the same machine but will not spend the time to do it, because you can't make money doing index balancing at $8.00 a tire or whatever they charge.
Be prepared to spend close to $150.00.

It spins the tire with a road load in place. Instead of adding weight they rotate the tire on the wheel looking for that sweet spot.

These machines are good enough to balance a square box.

If you have expensive tires and drive at high speeds, it is worth it.

TURK