The 2 bolt version will NOT fit without major modification. I bought one and fussed with it for months and decided that there was no easy way to make it fit so I sold it. The MVS version came out and it looked like it would fit so I bought it with plans to make my own o2 housing. I got in a hurry and bought the MAP one and it took like 2 months to get it but it fit really well. I would sell the 2 bolt version and get the MVS. Its much more compact and has been working flawlessly for me. I have to remove the dump tube to take the down pipe off and I'm sure the v-band makes that much easier than fumbling with those 2 bolts. I've been thinking of getting an FP dsm76 and going with the mvs44 setup off the fp housing. It tucks up almost under the manifold. Just trying to justify $2700.