Rara, the point is the other filters (I called Champion, Mobile one, Purolator, Ford, Amsoil, Harddriver & a few others I cant recall) were NEVER TESTED above 3-4 GPM under any pressure to the best of my ability to discover after alot of calls /emails. They may be capable of plenty of flow but the only one tested to higher flow was the K&N. Now, if anyone can find data on a cheaper filter at higher flow rates - please let me know.
