Rawze.com: Rawze's ISX Technical Discussion and more

Anyone know the best program to put into a 2007 435st cpl8520 that's 500-600hp?

PM Unilevers or MommaBurt they'll tell you what you can do with it. I have the same CPL and its a fantastic 450HP that MommaBurt squared away for me. It pulls everything I hook to. You might be a little overly ambitious with 600 HP on that small 8520 CPL. Its the smallest of the cm870's.