I believe it will. I have an 08.5 rear bar on my 3. I can't see mazda changing the suspension parts. You will need to either change your rear end links or make up some sort of bushing for your stock end links. The rear bar on a speed3 has 12mm holes, MZ3 has 10mm holes so the stock endlinks will wobble around in the speed3 bar and get loose easier, clunk, or even break the end links. If you do get a speed 3 bar I have the bushings that I mentioned (I had 4 of them machined) I will sell them cheap since I won't need them.