You need to go to an auto parts store that sells PureONE's and check out the Purolator catalog. In the back they'll give you spec's on the various filters including thread, bypass valve pressure, and flow numbers. Nobody will recommend anything other than then OEM replacement filter, but you'll probably find one that will work. I passed on an oversized PureONE just because the bypass was set to 8-10 psi instead of the stock 12-15 psi. It probably would have worked just fine, but with my high reving Vtec motor, I decided to go with an oversized Mobil 1 with the same spec's as OEM. Also PureONE's are PL numbers, and the Premium Plus's are just L's. It looks like all spec numbers are the same for both, but one has more and maybe better media.