BMC air filters (used by Ferrari F1) are made of cotton and aluminum treated with epossidic resin.
These filters are different from original ones, first of all because using a cleaning kit they can be restored, then because let flow an 40% of air more than the original ones.
Race version lets flow an 15% of air more than the BMC "normal" version: for this reason use it only on truck and/or together with engine tuning as carburetor kit or ECU kit.
Sometimes they could be more expensive than the original ones, but the initial cost will be optimized by their unlimited lifetime.
FAQ: the BMC filter is a racing filter? Yes the "normal" version is a racing filter.
FAQ: Can I use Race version on street? Yes but we recommend to use it only with a tuned engine or with modified air/fuel ratio.
FAQ: While install a filter do I have to change or modify something on my bike? No, these filters can only get a higher performance to your bike.
FAQ: How Can I check "normal" filter is not a "race" and viceversa? "Race" filters have a yellow printed line over the air filter