As Dimo mentioned, Uneek4x4 have their own spacers. I've had a set on mine and they do the job but I found that they let the flares droop a little as they are only a length of foam.
It's not a problem and not a criticism of them as they do as advertised but I just didn't like the look of having the ends of the flares resting on my bulbar.
If this doesn't bother you, then they will do what you want for a lot cheaper than replacing the whole flare.
The expensive way is to buy from Double Black Off Road. They look stock but are 2" wider than standard.
http://www.doubleblackoffroad.com/je...ry-Flares.aspx