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Airbox Resonator

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Old 09-05-2007, 03:04 PM
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Airbox Resonator

My 1990 4Runner has (what the manual calls) a resonator. It is the black plastic box located next to the airfilter box. What is its purpose or what does it do?
Old 09-05-2007, 03:14 PM
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Originally Posted by rk2runner
My 1990 4Runner has (what the manual calls) a resonator. It is the black plastic box located next to the airfilter box. What is its purpose or what does it do?
It reduces intake noise for a quieter truck.
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