1 inch is a lot. are you lowered? if you take your wheels and tires too far out you will end up rubbing your fenders or possibly damaging them on large bumps. Measure and place the wheels right inside the fender. Proper placement and a nice wide tire give a good stance.
I run em, id recommend getting rid of factory bumb stops, I fabricated some, limit the travel so you don hit fenders, roll he fender lip, and id highly recommend a fully adjustable tubular rear suspension, just my own experiences.
are you lowered? Most of the rubbing on the outer fender depends on how low your car is. If you aren't lowered it will easily work. If you are lowered it will be more of a pain and you may need to buy jounce spacers.
If you plan on doing this...like OEM TA said, you better get some different studs bro...that putting on alot a strain on those "weak" studs. You dont want to be flying down the highway and see you wheel roll past faster than you haha! That is not a good thing! Spacers are scary IMO...I love going fast and you have to have confidence in your car when your over 110+mph, when the adrenaline kicks in...if I had spacers I would be shittin bricks bro!