The way I imagine it would be ...1 Find a 2010-2012 SE/SEL/Limited rear bumper lower valance. Use that as a template and cut a mirror trim in the right side. Every 2010-12 NON SHO models I have seen have use the left side as a dual tip. If you found a way to cut the mirror image on the other side of the valance that would make the template. After that just ******* up the excess and cutting/fiberglassing the valance to look neat and professional. I can imagine on how to do it but do not have the hand/eye mechanical skills. I good custom body shop should be able to help. I would work on the valance/fairing first then work the tips. I would like the Dual Dual layout though.