Xtremgrizz and I have different opinions on the sway bar! Mine broke last Spring and I didn't realize it. By the time I found out it was broken I was about ready to sell the Griz and get something more stable. It had horrible roll in the corners and on side slopes--to the point where I was almost afraid to ride it.
I replaced the sway bar and have been re-united with the love of my riding life: a Griz that doesn't feel like it's going to fall over.
Extreme is right on one thing, though: removing (in my case breaking. . . ) the sway bar DOES allow much better articulation which would be a real benefit in serious rock crawling or mudding. I like to trail ride and explore old logging roads so not having the sway bar didn't give my any benefit at all--and I really hated the handling without it.
Take it off, see what you think, post your opinion! But keep the parts, just in case!