Winter rims
#2
Burning Brakes
Twists from Porsche would have part numbers on them and from that you can figure out the offset which is the critical fitment question. 17" were the stock size. They could have come from another Porsche model like the 911 which would be different offsets. Just can't tell from the pictures.
http://www.willtheyfit.com/ and http://www.rimsntires.com/specspro.jsp are useful.
http://www.willtheyfit.com/ and http://www.rimsntires.com/specspro.jsp are useful.
#3
Look on the valve stems, that wheel comes in 3 sizes:
17x7 ET 55 (7 and 55 by valve stem, stock 986 boxster front and 996 gen 911 front)
17x8.5 ET 50 - stock 986 boxster back
17x9 ET 55 - stock 996 gen 911 back
The 17x9 will fit, but may require a small spacer as it may be very close to the rear strut in the back. The other are the stock fitments for the 986 boxster and will fit.
17x7 ET 55 (7 and 55 by valve stem, stock 986 boxster front and 996 gen 911 front)
17x8.5 ET 50 - stock 986 boxster back
17x9 ET 55 - stock 996 gen 911 back
The 17x9 will fit, but may require a small spacer as it may be very close to the rear strut in the back. The other are the stock fitments for the 986 boxster and will fit.