Air filter
3 Answers
TheSubaruGuruBoston answered 8 years ago
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?