There are 3 bolts - two secure it pretty well by themselves, and there's a third carriage type bolt that properly tightened and adjusted would keep the chain tensioned even if the other 2 were a bit loose - so its secure. I didn't ride it too much - never needed to replace the sprockets.
@androo5826 Red would be the only one worth putting on because of the high heat, but I try to not use that unless things loosen. So I might have to add it later.
The noise increased with the Dominator, not much - Don't know if it will work on a GSR46R, if you check out Dave's Discount Motor's it should list on the product page what its compatible with and if it wont work with your GSR, then have something that will.