We stock the complete line up of Turbosmart blow off valves, diverter valves, adapters, and installation kits.

We carry 100's of types of blow off valve fittings, adapter pipes, flanges to mount your Blow off valve! You name it, we got it! Click below for more details

HKS Blow-Off prevent compressor surge by venting the excess pressure when a throttle plate closes, thus improving spool-up & longevity.

Block-off flange (plug) for OEM Diverter valve, Volvo C30, 2.0T FSI/TSI. Block-off flange (plug) for stock diverter valve. Allows the removal of the compressor mounted factory diverter valve on stock C30, and 2.0T FSI/TSI Turbos.and allows the port to be plugged and sealed off. You can then mount a new, higher volume/higher pressure BOV elsewhere in the chargpipe system. Nice CNC machined from billet 6061 aircraft aluminum. This flange will also work on the Volvo S40 T5 and Ford Focus ST225.

$36.70

This exclusive blow-off valve features a dual cross tunnel discharge system with various discharge designs. You can use one or two GT-K inspired horns to vent the pressurized air directly to atmosphere for that extra loud discharge. Without the horn, you can recirculate for tuning purposes and quieter operation.

$315.00

The Bosch by-pass valve acts as a pressure-release valve that relieves un-needed and potentially hazardous pressures created by the supercharger by recirculating it through the supercharger for later use. The benefits include smoother idling, due to a reduction in blower surge, and protection against damaging head gaskets amongst other engine parts.

$79.99

Please call for best pricing! NEW! Turbonetics Godzilla Blow Off Valve A totally unique design! The "Godzilla" blow off/bypass valve assembly offers the ultimate in surge protection and cosmetic appeal. Highest flow capacity available - bar none!

$294.95

Tial Q Blow Off Valve BOV Springs.

$27.00

The Raptor blow off valve sets the standard for all other blow off valves! Best unit on the market today. Incredible sound! Can be set up to blow off or bypass boost (this means it can be used on cars with MAF sensors). Great for high boost applications!

$219.95

Greddy RZ Blow Off Valve. GReddy Blow Off Valves are easily adjustable to eliminate compressor surge and preventing premature boost leakage, while increasing boost response between shifts. Each valve is made of durable cast and billet aluminum frame and the valve to diaphragm ratio provides performance that cheap piston types cannot offer.

$224.95

Brand new release from Tial, is their bypass / diverter 50mm valve. Perfect for those who want the large high flow Tial style BOV but want to diver the air back into the intake tracking.

$259.95

TiAL 50mm Blow off Valve, New Q Version. Great Blow off valve for high boost applications!

$259.00