I have drilled and slotted fronts, got them made like that, and I've had no problems. They've yet to crack, and they look good. I noticed better than stock braking, but that's because my stock brakes were shot to hell lol. One of my rotors actually shattered when we removed it and the mechanic dropped it from about 4 feet. Overall, they work like stock, because you won't beat your brakes hard enough to develop the "gassing" and heat people talk about and reap the benefits of the drilling/slotting. Remember, the streets aren't Nascar. Soon I'll be doing a 5 lug and rear disc conversion fron an SN95 stang, and I've already got a brand new set of cross drilled/slotted rotors in the shed for all four corners. I would not, however, recommend grabbing a drill and attacking your rotors. They have to be balanced, so precise hole location is a must. Go on Ebay, you can get a pair for like 100.00 or so, that's what I did. They're worth it if you need new rotors, but not if you just want the look.