Wheel Size on 2003 Boxster S

[fredpayne]

I currently have 7x17 and 8.5x17 Wheels on my 2003 Boxster, I believe the offsets are 55 on the 7, and 48 on the 8.5"

I want to put on some new wheels, the ones I found are 17x8 and 17x9.5, exactly one inch larger on front and rear, I think the offset on the new ones are 50 on the front and rear, I'm not positive.

Question is will these 1" wider wheels work on my 2003 Boxter S