I dunno, I think the site has merit. I know a guy that has an HKS SSQ BOV on his WRX that sounds like crap because its running close to stock boost (Its VERY high pitched and kind of annoying). Since you have to live with the sound of the BOV once you buy it its good to know up front.
I still wound up getting the HKS unit, but it doesn't sound bad when you're pushing more boost
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