The front wheels should fit, the rear I am not sure about the offset and width. You can try willtheyfit.com for help. Also you said you have them already? Easiest way would be to mount one and see?
As for tire size. I think they will be too tall. The stock 18s have 225 40 18 tires. If you want to go with a 235 or 245, you will need to go with a aspect of 35 probably, 235/40s might work but for 245s, you will probably need a 245/35.
Thanks and yes i do have them just making sure if they will rub or not...dont want to put them on and end up rubbing...have no knowledge into wheel fitment...even if i tried learning it lol thanks for the reply will try that web site
Those x9 rears will probably require a smaller tire and some fender work etc. That's a lot of offset for that much rubber. But only one way to find out. Mount em on and jack it up into the wheel well and see how well it does or does not fit.