LOL...But Dave at Arizona Z Cars has been dealing with brakes on all Z cars for many many years. He seems to know his stuff and especially likes this kit in particular. And if you ask any real road course racer, you need brake balance. And I fully believe you aren't going to get brake balance without doing the rears. I had a great article on it but don't have the bookmark anymore (had to reformat my hard drive...ugh!). Yes they may make many many calipers for many different types of vehicles. But that doesn't make them bad. I believe Stoptech does the same thing. Assuming you only upgraded the front with both these kits and tried to compare them, the performance will be very close. It's almost like buying an exhaust...lol They all perform about the same. Until I see one car with all the brake kits on it one after another in the same conditions and tested over and over, nobody is going to tell me that one is better than another. Unless you test under controlled conditions, there's just no proof. If you state otherwise, you're not thinking like a scientist. :-) And this is all about science.
