Description
Revo Sound Suppressor
Ford Focus RS 2.3 EcoBoost
Increasing the airflow with an aftermarket intake can contribute to exacerbating a whistle sound on idle or light throttle that might not have been previously noticeable. Caused by air flowing over the OE resonator in the compressor housing the Revo sound suppressor has been designed to help cancel out this whistle, by simply removing the existing Oem piece and replacing it with the Revo part you are creating a chamber that works as an active cancellation device, eliminating the unwanted sound.
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