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      04-09-2009, 02:14 PM   #6
Major General
lucid's Avatar

Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

iTrader: (0)

I certainly would leave the brakes alone if the car was never going to hit the track. I suspect that what you experienced was mostly perception. Fade cannot be an issue with regular street driving. The rotors are fairly large, and it would take some serious braking to heat them up to the point where the street pads begin to fade. Even then, there is no reason to upgrade the rotors on the street; a pad upgrade would be fine. I guess the pedal feel would improve with a major upgrade, but again, is that worth the major investment? Finally, I spoke with Turner about the brake lines. He said BMW would not ship an M car with mediocre lines, and that he didn't see a need to upgrade them with stainless lines. But since stainless lines are fairly inexpensive, one could try just to see if it makes a difference.