Also fuel mileage if you have wideband lambda. It simply throttles the engine at high rpm, WOT.
Me. I dont like the power loss with a clogged filter.. I actual put a LOW efficiency cheap STP in the Rogue to get more WOT zing entering the expressway. A Nice filter I bough previously seemed to choke the thing up.
2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter