I have a set of 2 BF Goodrich GForce R1s(255 40 17) can i get away with putting another tire manufacturer up front for autocrossing...or does anyone know where i can get another set?
any other tire recommendations if I cant?

 

If anything I'd be running the KD's up front, especially if you are buying a "lesser" tire for the other axle. It doesn't get any better than KD when it comes to street tires. As for new tires..

www.tirerack.com

www.tires.com

www.vulcantire.com