Quote:
Originally Posted by m3alabama
Whats with bmw not putting brake ducts into the m3, and now the 1m when these are their 2 most utilized track cars!! The x35i models have the ducts and yet these two do not-baffles my mind.
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While dedicated cooling brake ducts work and are on the M3 GT4, it is unnecessary and a waste of money for both BMW and customer to have them fitted as standard. For the majority of buyers, their M3s will never see track time, even some that do, won't be pushing their M3s so hard to need ducts. It is only a very small percentage that regularly track their car and really push it on track. Even then, an appropriate set of track biased pads are usually sufficient for hard track driving, as long as the driver can manage the brakes and session time. The M3/1M brakes improve cooling and compensate for the lack of air channels (found on the 3 series), by having floating and cross drilled discs of a significantly larger diameter.
Obviously, there are some who like/need to push hard on track lap after lap for 20mins or longer, then things like a BBK and dedicated ducts become a necessity.