We stock several replacement and performance drop-in air filters for your BMW. Replacing your intake filter (or filters, depending on vehicle) can improve your BMW's performance immediately.
This allows your engine to breathe easily, making your powerplant more efficient. This filter utilizes two layers of tightly woven cotten fabric - cotton holds oil better, is thinner, and stronger.
High flow filter replacement directly from Dinan. Replace every 20,000 miles under normal driving conditions. Replace sooner if driving in dusty, sandy, etc. conditions.
