So I ran my rb6 for the 3rd race and am getting beat bad by mm cars. I'm going to try mm. I have the stock chassis and some alum upgrades. Is there anything needed as far as upgrades for mm? Is the cf rear tower help/nessasary? And is the weight kit needed? Was looking at the tresery 2 peice mm rear bulkhead does it accept the weight kit? Does the original kit mm bulkhead accept the weight kit? I'm running 17.5 indoor small tight med grip track