5x114.3=5x115 its basically the same difference. I have been on 4 different sets of rims in my impala (2 of them being 5x115 and the other 2 5x114.3 which again that are the same thing) There is not real noticeable difference. The rims will bolt right up with no issues.

 

Discount Tire didn't need to use hub centric rings on my new wheels (5x114.3) and I don't have any vibration issues or anything.

 

http://www.clubgp.com/newforum/tm.as...mode=1&smode=1

 

Hub rings because it's a 5x4.5 is just crazy, it's not an import.