I have RPF1's 18x9.5 F and 18x10.5 R

I also have a set of wheels

275/40/18 for the rear
245/40/18 for the front

The RPF1's have an offset of 15 though... Will I have trouble putting these in?

Thanks for your help in advanced

EDIT: They are 9.5 throughout

Tire sizes seem fine, but that 9.5" up front probably won't work and the rear wheel is pretty aggressive and may require fender mods.

With your fenders rolled flat in the rears you will be fine. A little bit of poke if you're stock height, if you're lowered with camber they wont poke. But you may have some rubbing issues with the tire profile being high and the width is a lot. 255 would be ideal as opposed to 275.

I'm so dumb.. I tried to bargain hunt online. I picked up 6 tires brand new for decent price. Then picked up the RPF1's because they were a good price too..

Im just dreading this because there are so many adjustments I have to do .. cars in general are just too confusing!

i have 255 up front and have a little stretch. You might be ok w/ that but if you ever run a flat it won't be pretty. If you can do at least 255.

a flat would be devasting, don't say that!!

(Don't forget to knock on wood)

No one wants that. I was luck to catch mine before taking off. As much as i want to take the spare tire out, it has saved me atleast 3x now. 4 as of last week.

Oh man, I have had stock wheels on and I don't notice until after I take off ! I guess I need to work on my driving habits! xP

That rear is will stick out a bit from the rear quarter panel, as long as you're not that low it wont be a problem. The fronts will fit fine. I currently run 275/35 and 285/35 on 19x9.5/10.5 +22 volks. My rear is perfectly flush with the body, but front sits inside about 10mm.