Join Date: Mar 2013
Location: Ontario, Canada
In 2005 they increased the wheel bearing size to better handle the rigors of competition.
I suspect that 5x100 was a compact car size of wheel hub, but the Impreza chassis was being put in competition that really required a more durable wheel bearing all along.
Just part of the ongoing improvement of the chassis, in response to Prodrive's WRC feedback to STi, I presume.
Laszlo - white '11 STi sedan
Buckle up. The all-new WRX STi is here.