26 and 29 lbs (front/rear respectively) for the rim weight. Ouch. If I were replacing rims on my Boxster again, it would be for
lighter unsprung weight, not more weight on every corner.
I bought aftermarket 18 inch Carrera Lights (Italian production) with the same widths. It makes my car look much newer and much better in my opinion (pictured below), HOWEVER...
the car is noticeably sluggish off the line due to the additional weight. I'm betting their weight is similar to what is pictured above. (I'm too scared to weigh them to see just how much heavier they are compared to the factory 17 turbo twist type of wheel the car came with, which I use for the track.)
This is the right direction in which to go with aftermarket wheels:
https://www.tirerack.com/wheels/WheelCloseUpServlet?target=runWheelSearch&initialPartNumber=W0183400253B&wheelMake=O.Z.&wheelModel=Alleggerita%20HLT&wheelFinish=Black%20Painted&showRear=yes&selectedRear=W0183600253B&autoMake=Porsche&autoModel=Boxster+S&autoYear=2001&autoModClar=&visLoc=1