standard boxster rims 18 inches Vs Carrera 4s

[mariosp]

Hello
I have the option to replace the standard boxster 2004 rims with the carrera 4s see images
The seller told me tha the back rims the width is bigger than front I remember is 315 tand the front is 285 but I am not sure.....
does this change make problem to steering or stability of the car?

[Perfectlap]

Not worth it for the added weight. The stock Boxster fit Carrera "Lights" are approximately 20 pounds. Most aftermarket wheels that are this light are $2,500-3,000. Cheap aftermarket wheels are typically at least 30 pounds and are prone to cracking. The C4S wheels are heavier than the 20 pound Carrera lights, I'm not sure exactly how much more, but they sill tax your wheel bearings, which are not cheap to replace, it will be harder on the suspension, which is fragile in the rear, and you'll be dealing with more rattles.