Thank you guys for your help... Problem solved! I contacted Shell and Fineline and she told me that they do make a mirror arm for the evo tower that is billet however it is very pricey. I wanted to explore all other options before spending that much on a piece of aluminum. I ended up with a round clamp (even though the tower arm is slightly oval), an articulating billet mirror arm and a CIPA mirror. It is all installed and worked out well. Probably not quite as good of a fit as the one from fineline but overall it was about $100 bucks cheaper. Thanks again for the info, enjoy the summer!!