With new and improved styling, the BOV-H-RFL remains true to it's roots - it's still really f'n loud! Like all our valves, the RFL relieves compressor pressure surge caused by changing gears or backing off the throttle and has been used on turbo charge  Product Details...

$219.00
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The Racing Bypass Valve Type 25 was specifically designed to replace the 1 inch (25mm) Bosch Bypass Valve used in most Volkswagen and Audi applications. The Bosch valve is prone to failure in stock application and not adequate for holding boost in "chipp  Product Details...

$169.00
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Want a valve that people notice when it goes off but don't want "RFL-loud"? The BOV Type H is the valve for you. Providing greater venting flow than our BOV-S, the BOV-H is designed for turbo charged engines running up to 35 psi. Crafted from hard anod  Product Details...

$179.00
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Racing Bypass Valve Type H34 vents excess pressure back into the car’s air intake making the valve ideal for Mass Air Flow (MAF) metered cars where venting to atmosphere can create a "rich" air/fuel ratio right after the valve goes off. The Racing Bypas  Product Details...

$189.00
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Identical in design to our RBV-H34 with the exception that the outlet of the valve is our standard Type H female inlet instead of a 34mm hose adapter. This allows the valve to be used either in normal fashion or "reversed". Using the valve in the revers  Product Details...

$189.00
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Our smallest valve, the BOV Type S is recommended for small to medium sized turbo charged engines of less than 2.0 liters. Excellent flow in a compact package, the valve is perfect for your turbocharged Honda.  Product Details...

$129.00
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