I can attest to the JDM F4i shock install on a 6th gen non-ABS is possible without modifications to any parts of a stock bike. I would not have been able to do the job by myself however (due to my limited mechanical skills). I think even an experienced MC mechanic would do well to have a helper. Fred (huntinggunns) was my mechanical expert. We did angle the mounting bracket some while lining up the bolt to the hole in the subframe and then with the shock half-way home, used a wrench to straighten the bracket before tightening the mounting nut on top. It definitely took some finagling to get it in. We removed the triangles and dogbone as well.