I still have the stock 16"s on my car, but I've been helping others plus size for years. I work at a custom wheel & tire shop and I've worked in many other places that will do plus sizing and custom setups. The difference in height is less than .15 of an inch to OEM the sizes I listed for you.

Next step is figuring out what offset and width size you want.

 

I like having the offset so the tire is pushed out a bit but does this effect wheel bearings? And iyou like wider tires. Do i need like rounded tires like ive seen in pics before if im gonna lower my car?