Will the stock evo x tires fit onto an 18x9 rim.

 

Yes, it will fit but I'll be a very slight stretched if you don't mind that.
And no its not bad for your car, it is going to be stretched but it won't pop of the rim. nothing like 215 on 9's
heres a pic 18x9.5 245/35/18 just to give u an idea...