Subaru WRX Blow off Valve Kits will allow you to hear more of a "whooshing" noise when you let off the throttle. Subaru's usually run best on the factory valve. Fully Atmospheric valves will be the loudest, whereas recalculating valves will give a smoother throttle response.
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HKS LegacyGT/ 2008 WRX SSQV Blow Off Valve Kit (BOV) HKS Super Sequential Blowoff Valves (SSQV) are dual stage pull type relief valves that by design do not leak under high boost conditions or under idle vacuum and is actuated by pressure alterations to... more >>>
$340.00 $316.20
HKS Special Edition Black SSQV Universal Valve BOV HKS Super Sequential Blowoff Valves (SSQV) are dual stage pull type relief valves that by design do not leak under high boost conditions or under idle vacuum and is actuated by pressure alterations to... more >>>
$275.00 $255.75
TurboSmart 2008 WRX Dual Port Blow Off/ Bypass Valve BOV Due to the ever-increasing demand, turbosmart now has a bolt on BOV for the Subaru WRX that will vent to atmosphere and back into the air intake. Dual ports with sequential timing allow quieter operat... more >>>
$359.00 $323.10
Tial Alpha Q Bypass valve For use on turbo-charged and super-charged applications (Paxton, Vortec, etc.). The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) val... more >>>
$325.00 $292.50
Tial Q Blow Off Valve New for 2008 is the first revision of the nine year old original TiAL BOV. The Q bolts right up to any standard TiAL flange so you can upgrade without having to re-weld. Through countless hours of R&D... more >>>
$299.00 $259.99
TurboXS 2008 WRX Type H Blow Off Valve urboXS releases the first Hybrid Blow Off Valve designed specifically tuned for the 2008 Subaru WRX. The valve features an innovative re-circulation and vent to atmosphere operation. It has been tuned... more >>>
$229.00 $206.10
TurboXS 2008 WRX/ Legacy GT Turbo RFL BOV The WS08-RFL is designed specifically for the owner of a 2008 WRX and 2005+ LGT 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 ... more >>>
