Air filter

Jeffrey Wilner

Asked by Jul 31, 2016 at 01:54 PM about the 2011 Subaru Legacy 2.5GT

Question type: Maintenance & Repair

Will my 2011 air filter make humming noise
when dirty?

3 Answers


Only if you sing to it nicely.

Best Answer
Jeffrey Wilner

Lol.. Very funny


Actually, a clogged air filter will retune the air volume in the plumbing, changing the intake resonance control engineered into those plastic chambers, so YES, you may hear more (or less) acoustic output and frequency response. Many cold air intakes increase intake noise on light to moderate throttle. Better to not starve your turbo of air, though, eh?

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