Quote Originally Posted by Deke
This is true with Impreza/WRX/STI/Forrester XT owners. For the first few years I had my car you couldn't pass one without getting a wave from the driver. It's gone down a little bit just by virtue of having more cars out there.

I"ve heard Jeep Wrangler owners have a similar bond as well.
Yep, the wave feels like a required part of driving a turbo Subaru.