[SuperMacGuy]

Dammit so I am trying to fix my brakes, and seriously considering the C7 z51 brake upgrade. Which according to peeps on LS1Tech seems to fit 17 inch wheels. EXCEPT I look at my CCW wheels and see there is a 1/2 inch "inset" bump on the inside of the barrel. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/rant2.gif) (IMG:http://www.frrax.com/rrforum/style_emoticons/default/banghead.gif) I went with 17s when I got them b/c they generally fit and I thought I'd be good with them. I didn't buy the new brakes yet but man I am upset. I don't want to have to sell these (along with a set of extra tires) just to buy 18s and spend even more money.

[CrashTestDummy]

Do you really need the big brakes for autocross? I ask because I've never had issues with stock F-body brakes, and I've autocrossed everything from 2nd- through 4th-Gen cars. Granted, our 3rd Gen stock class car was a 1LE, but our CP car actually has smaller brakes than what it had from the factory, and I can still have enough brake to lock up hot slicks on concrete, and have had zero issues with brake fade. Granted, the car is 2800#, but it's a 2-driver car, and we run in Houston summers on some pretty big courses.

So are you needing big brakes, or figured it was the way to go since you are trying to fix the other brake issue and figured why not?