Whatever's at the auto parts store, paper, and cheap.
My model requires a full canister unit that could technically operate without an airbox.
My K&N filter disintegrated after about 3-years operation, and routine maintenance.
Bottom Line: Spend money elsewhere and get an "OK" filter. Filter flow rates are hogwash -- there are many other locations in the air stream that greatly effect engine operation: specifically FE.
Christ -- Your 0-60 results: were they under the same environmental conditions? Otherwise, I call "butt dyno".
RH77
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“If we knew what we were doing, it wouldn't be called research” ― Albert Einstein
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