Hello all. First of all, I am new to porsche. Just bought 2016 911 2C. And I was recommended to this forum. So thank you all for your help and guidance. I am trying to purchase winter tires and wheels. But I do not want to mount oem 19 inch. Can I mount 18 inch wheels and do I need to stick with oem tire size? Thank you.

 

Go to tirerack.com. You can downsize to 18 inches. The site gives you the right options/sizes.