I reckon why pay top price for Honda's Rims? they don't look that great, I am sure one of the people that have the sport here have a set of 16" for sale, they put on aftermarket straight away. In terms of Warranty, they love to void everything and any thing when it comes to a claim. I have always been told that you are allowed to go up 2 inches following the placcard, Just keep in mind, that the profiles and rim size must all match back to the diameter of the wheel before and after the change. Good luck!