So I've had my X for over a year now, almost two and I think its time for new wheels. I have the stock 17 inch wheels and I'm looking to upgrade. I wanted to go up to 19 but my friend said 19's aren't good because its not a common size and the tires and wheels are more expensive. He told me to go up to 20". What's the best wheels/tire combo? I know a lot of you like the RDX rims. Anyone else got updated pics? Cause the ones I tried to look at were no longer available. Any other good combos out there? Should I go 18 or 20? Will the 20's lower my MPG? Thanks in advance!