First Force Performance Products
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Subaru WRX STI

Blow Off Valve Type H-RFL Blow Off Valve Type H-RFL Ref: BOV-RFL
With new and improved styling, the BOV-H-RFL remains true to it's roots - it's still really f'n loud!


WRX/STi Racing Bypass Valve WRX/STi Racing Bypass Valve Ref: WS-RBV
Specifically designed for MY 2002 and up Subaru WRX and STi's, the WS-RBV requires no adapter kit to install.


WRX/STI Hybrid Valve WRX/STI Hybrid Valve Ref: WS-HYB
The new Hybrid Valve gives your WRX or STi the subtlety of a recirculating Bypass Valve, combined with the power and sound of a Blowoff Valve. We recommend upgrading the factory valve when running boost above stock levels.


Agency Power Adj. Blow Off Valve Subaru WRX STI Agency Power Adj. Blow Off Valve Subaru WRX STI Ref: AP-GDA-150
Model No: AP-GDA-150 

Agency Power Blow Off Valve Horn Agency Power Blow Off Valve Horn Ref: AP-GDA-150-1
Model No: AP-GDA-150-1