Just wondering if any body knew of a place that could mount/balance run flat tires and fill with nitrogen. Looking for places around central Jersey. None of the Nissan dealerships around me could mount the run flats.

So far i've found 1 place, but they want $300 to do it. My other option is to take to a friend's shop to mount/balance, then go to Nissan to drain the O2, and fill with N2.

It's for an '09 GTR.

Thanks guys.