It does widen it approx 2" I dont notice it personally.. as well as the mud scrapers being gone... If thats what you are riding then yeah stick with the stocks.. but thats kinda the only options for Razr 2 in the back.. I do belive that Razr 1 works though... not 100% since I didnt look up sizes. Handling wise I also didnt notice to much of a change.
If you want to stay with stock rims, which I decided to do... At least until I bash the crap outta them.... You can use Razr2 on the front in your choice of 21", 22" or 23" (M933)
And for the rear, you can use the 6 ply Razr (M932) 22x10x11