as i hope youd know i have 18" dub dirty dog 5 spoke wheels on 255/45/18 setup that are 8.5 wide.

i am looking at a new set of wheels, also 18 on the 255/45/18 setup, however they are only 7.5 wide. what would be the difference i can expect in terms of feel, ride, and performance? or anything at all?

another question.. my current wheels are 38 offset whereas these are 45. i KNOW the difference between offsets, but would 45 fit and what would be the difference here as well? would the lip be the same as my DUBs (which is about an inch and a half) or would it be less or more?

thanks guys