Running up front in STx will be expensive too. Much cheaper for a full ITx build than an STx. don't plan on running up front in STU unless you have money to burn. When I started building my car for the class, I figured I'd get a couple more years out of it before it got $$$$ to run up front. nah. that happened this summer. I'll always be the poor guy 5 sec off the pace.. but I'll still be there. :)