More worried about fender clearance under compression, because the wheels are also more aggressive then the factory ones.
et40... oh jeeze. I can't help with _that_.
But...
http://www.rimsntires.com/specspro.jsp says:
Suspension clearance: 100% clear (leaves even more room than OEM)
Fenders clearance: Package 2 will stick out 33 mm (1.3'') farther. Make sure that you have enough room under the fender. If not, consider narrower tires or higher offset.
Wheelwells clearance: 100% clear (leaves even more room than OEM)
SPEEDOMETER: When speedometer reads 60mph (96.6km/h) actual speed will be 59.4mph (95.6km/h): 1% slower.
hehe, "package"