stock air filter vs. simota or K&N

[SiRbossR]

ramdam po sya sir, kasi yun friend ko stock air filter sa kanya sakin naka KNN tapos nagpakabit kami ng throttle controller then nagpalitan kme ng sasakyan nagtataka kami pareho same lang naman kami ng modz pero masmadali humataw yun sakin...

ang reason daw sabi ni master zix dahil sa racing filter ko which is KNN

HTH

Yeah, i know. I've had few K&Ns. Even those open filter K&Ns. But for me, in Metro Manila conditions, i'll stick with oem. Ang mga naka K&N nalang sa cars ko ay yung mga garage queens.