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The WS08-RFL or Really F#$%!@ Loud is designed specifically for the owner of a 2008 WRX who wants a vent to atmosphere blow off valve. This is the loudest valve on the market at 115 db at 15 psi. Athough it is not only sound and aethestic mod with it's polished/anodized finish, the RFL adds function when you are running high boost pressures.
Fits: Subaru WRX 2008 +
$199.95
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