both are good. i personally prefer summit but whatever has what you need for a good price...top of the line rotors are not needed unless you race with them... my buddy has his mustang with normal rotors and he races every other weekend...replaces the rotors every month wether they are the cheap ones or expensive ones... if you want cheap cross drilled/ slotted, then i would go summitt.
yeah it is! road race hoosier tires worth $300 a piece every month and a half, new brake pads every week, new rotors once a month... the car is gutted except front seats, roll cage, and sound system.... the engine is fully stock 2004 4.6 V8 side roush exhaust. its a fun car to race in thats for sure but theres a cost for good fun!