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Blow Off Valve Type I |
Ideal and affordable for the small project. The Type I BOV is best suited to engines up to 1.5 litres in capacity, producing standard or mildly increased boost.
Adjustment via the set and forget system (packing shims included). Supplied with a 38mm weld-on adapter to suit stainless or steel piping. Supported by Turbosmart Multi-Fit adapters.
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Blow Off Valve Type II - Vee Port |
Features the unique variable exhaust port system resulting in superior venting of excess pressure, a popular choice for the street.
Adjustment via the unique Quick Wrist action (no spanners required). Supplied with a 38mm weld-on adapter to suit stainless or steel piping. Supported by Turbosmart Multi-Fit adapters. |

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Blow Off Valve Type III - Plumb Back |
For the serious enthusiast NOT wanting to be noticed, the Plumb back BOV allows all pressure to be vented back into the intake system. Supplied with a 24mm, 32mm or 38mm outlet to suit your application (please specify), refer to the adapter guide for specific model information.
Maximum flow without the noise. Adjustment via the unique Quick Wrist action (no spanners required). Supplied with a 38mm weld-on adapter to suit stainless or steel piping Supported by Turbosmart Multi-Fit adapters. |

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Blow Off Valve Type III - Supersonic |
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Supersonic blow off valve for the enthusiast wanting to be NOTICED. Widely used on the show and race scenes worldwide.
Suited for high-performance applications.
Adjustment via the unique Quick Wrist action.
Supplied with a 38mm weld-on adapter to suit stainless or steel piping.
Supported by Turbosmart Multi-Fit adapters.
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Blow Off Valve Type III - Dual Port |
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This dual port BOV will vent into the atmosphere and back into the air intake. BOVs with dual ports allow quieter operation during normal driving loads with the benefit of going supersonic during race conditions. Supplied with a universal blanking flange to reconfigure to plumb back or atmospheric dump only. Adjustment via the unique Quick Wrist action (no spanners required).
Supplied with a 38mm weld-on adapter to suit stainless or steel piping.
Supported by Turbosmart Multi-Fit adapters.
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Blow Off Valve Type III - Megasonic |
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This BOV is now the highest flowing in the Turbosmart range, out flowing most BOVs available, ideal for the serious racer. It also caters for the show cars that wish to stand out from the crowd. Best suited to high performance applications. Maximum flow and maximum noise. Adjustment via the unique Quick Wrist action.
Supplied with a 38mm weld-on adapter to suit stainless or steel piping.
Supported by Turbosmart Multi-Fit adapters.
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|  | Model Specific Blow Off Valves
The following range of BOVs are designed specifically for applications where space or other constraints will not allow for a Multi-Fit BOV to be used. They are supplied as bolt-on kits, complete with everything required to fit the BOV.

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SUBARU WRX/STi 2001-2005 DUAL PORT, BLUE |
| Due to the ever-increasing demand, we now have 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 operation during normal driving loads with the benefit of a Supersonic during race conditions. No adapters required Supplied with a universal blanking flange to reconfigure to Plumb back or atmospheric dump only Quick and easy fitment Adjustment via the unique Quick Wrist action (no spanners required) Supplied with a replacement flange gasket and blanking plug and all fitting hardware.
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SUBARU WRX/STi 2001-2005 SUPERSONIC, BLUE |
| Following the huge popularity of the new the Subaru WRX and the success of the bolt on Vee Port, we now have the bolt on Supersonic for the serious racer. Best suited to high performance applications Maximum flow and maximum noise No adapters required Quick and easy fitment Adjustment via the unique Quick Wrist action (no spanners required) Supplied with a replacement flange gasket and blanking plug and all fitting hardware.
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Subaru WRX/STi 01-05 Vee Port, Blue |
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Purpose built for the WRX/STi featuring the unique variable exhaust port system resulting in superior venting of excess pressure, a popular choice for the street. No adapters required Quick and easy fitment Adjustment via the unique Quick Wrist action (no spanners required) Supplied with a replacement flange gasket and blanking plug
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Subaru WRX/STi 2001-2005 Plumb Back, Blue |
Following the huge popularity of the new Subaru WRX and the success of the bolt on Vee Port for the 2001/2 model we now have the bolt on Plumb back for the serious enthusiast NOT wanting to be noticed. Maximum flow without the noise No adapters required Quick and easy fitment Adjustment via the unique Quick Wrist action (no spanners required) Supplied with a replacement flange gasket and blanking plug and all fitting hardware.
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Subaru Liberty GT 03-04 Dual Port, Blue |
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Specifically Designed For Subaru Liberty GT The Dual Port BOV will vent to atmosphere and back into the air intake. Dual Ports with sequential timing allow quieter operation during normal driving loads with the benefit of a Supersonic during race conditions. Supplied with parts to convert between Plumb Back and Supersonic.
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