Steering wheel shake / vibration at highway speeds ( 60 mph + )

[Dog'sLife]

Originally Posted by BoxsterInTheSun

Great questions. Let me try and answer them here...

I was going to rotate them front to back. I'm not toally sure what a staggered setup is, but thought it would be possible as the tires are currently the exact same size on the front and the back, just different models of tire. I could easily be missing something though.

The Boxster has different tire widths front and rear. The rear are much wider. If yours are not, that's a good starting point.