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Mazda CX-7 Maintenance
There is a discussion in the October 2006 "Road & Track" magazine regarding exchanging the CX-7's cartridge-type oil filter for a standard spin-on filter with Mazda3 parts:
Mazda parts needed:
Filter Mount L301-14-311
Filter Mount Gasket LF01-14-342
Oil Filter LF10-14-302
Haven't tried it myself, but it sounds cool!