Description
GruppeM Power Cleaner filter kit for the Toyota Supra VVTi.
Generally, three qualities in particular are sought in air filters; air intake quantity, filtration efficiency, and durability. As each of these requirements are in conflict with each other, extensive experience and certain technological adeptness are necessary to bring these into a higher balance. For example, while a material for use in the cleaner may have equal filtration efficiency as another, considerable air intake may be possible in that case high efficiency is retained, but, depending on the suitability of the material, long-term durability cannot necessarily be obtained.