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      01-12-2013, 08:51 PM   #64
1MOREMOD
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Quote:
Originally Posted by sensi09 View Post
4 piston BBKs look to offer similar weight savings. It's when you compare bigger 6 piston and 380mm kits that you get similar weight as stock.

If comparing the BBKs in the same size made for other cars is acceptable, we can do a quick comparo.

Using the stock weights from this thread http://www.m3post.com/forums/showthread.php?t=482641 and/or the racingbrakes forum/store. The weights of the stoptech trophy kit from a google search.

Front:
OEM rotor : 21lbs
stoptech rotor : 17.8lbs
racingbrake rotor : 18lbs
http://www.racingbrake.com/Two-piece...-M3-p/2161.htm

OEM caliper : 13lbs
stoptech trophy caliper : 6.8lbs
stoptech ST-40 caliper : 7.8lbs
racingbrake RB460 caliper + bracket : 9.9lbs
racingbrake RB460 caliper : 6.1lbs
http://forums.racingbrake.com/showthread.php?t=863
http://forums.racingbrake.com/showthread.php?t=849

Did not compare brembo kits as they seem to be more expensive. And don't think that AP has a 4pot bbk for the front....just for the rear.
OEM front rotor is 22.5 lbs. happen to have a set sitting in the garage so put one on the pelouze.
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