It's actually a little taller vs. stock so you get more filter area, this is what SZ had on their site. https://smile.amazon.com/Royal-Purple-20-400-Extended-Premium/dp/B003L2ZQ9E/ref=sr_1_5?dchild=1&keywords=20-400&qid=1624916280&sr=8-5 Also 20-561 will also work and has the same specs. No idea why they have 2 different PNs. Maybe worth a call to RP if you want to ask.
Bernie Bilski berniebilski@cox.net President of Z-Car Club of Northern Virginia1995 Nissan 300ZX TwinTurbo in Cobalt Green 1997 Nissan 240SX SE in Ultra Red 2006 Nissan Frontier SE in Ultra Black
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