|  |  TurboXS Blow-Off Valve Kit
 This is a true "blow-off valve" which is designed NOT to return the blown-off air to your intake. It features an adjustable spring-tension design so you can tighten the valve up enough that it does not leak air at idle. So your car will idle fine, yet you can have that super-loud "PSSSHHHHT! sound when you get off the throttle. This valve is LOUD! Click the link below to hear it.
The TurboXS valve is made of super-durable billet aluminum and solid brass. Adjustment is done with included pre-load washers. The whole unit is rebuildable, if it ever did require maintenance.
Kit comes complete with BOV, pre-load washers, mounting hardware to bolt directly to your factory CBV flange, allen wrench, and installation instructions. Available for 2002-07 WRX.
If you want an even louder valve, with slightly different styling, check out the TurboXS RFL.
Note: Installing ANY blow-off valve involves some compromise in driveability. When the BOV vents, the car will run momentarily rich. The adjustable valve can usually be adjusted to minimize any hesitation or stumbling, but hiccups or stutters are part of running an open BOV. If you're not ready for this, please do not install an open-to-atmosphere valve.
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