I am ready to replace my front rotors and i am going to be buying the cross drilled brembo rotors for the front only. My ? is, should i do all four or can i go with the front first and later on the rear? Also, where can i buy the S/S covered brake lines? Let me know, since i will be doing this the 4th of July weekend. Any one using S/S brake lines, did you feel an increase in performance?