Turbosmart, blow off valves
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Blow Off Valves

Why do you need a Blow-off Valve (BOV)?
To eliminate compressor surge when the throttle is closed during gear changes or deceleration, causing turbo cavitation, which is detrimental to the life of your turbocharger. Fitting a BOV will substantially alleviate this problem. With a BOV you will also notice a substantial improvement in response between gearshifts. Boost will come on earlier with an increase in torque at lower RPM. Sounds!

Why choose a Turbosmart BOV?
Turbosmart BOVs demonstrate commitment to innovation, quality and performance – each BOV piston is hand matched to a body forming a unique matching set.
All Turbosmart BOV’s are supported by a comprehensive range of model specific adapters. All BOV’s come with comprehensive installation instructions and carry a Life Time Warranty*



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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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FG-BOV-001padRegular price: $164.25padSale price: $129.95pad
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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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FG-BOV-002VPpadRegular price: $252.45padSale price: $209.95pad
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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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FG-BOV-003PB padRegular price: $307.57padSale price: $259.95padSelect Outlet Diameter: 
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Blow Off Valve Type III - Supersonic
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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FG-BOV-003SSpadRegular price: $350.00padSale price: $289.95pad
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Blow Off Valve Type III - Dual Port
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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FG-BOV-003DPpadRegular price: $370.00padSale price: $299.95pad
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Blow Off Valve Type III - Megasonic
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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FG-BOV-003MSpadRegular price: $389.00padSale price: $329.95pad
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padModel 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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FG-BOV-WRXDP padRegular price: $399.00padSale price: $319.95pad
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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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FG-BOV-WRXSS padRegular price: $389.00padSale price: $299.95pad
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Subaru WRX/STi 01-05 Vee Port, Blue
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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FG-BOV-WRXVP padRegular price: $289.00padSale price: $244.95pad
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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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FG-BOV-WRXPB padRegular price: $389.00padSale price: $299.95pad
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Subaru Liberty GT 03-04 Dual Port, Blue
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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FG-BOV-LBGTDP padRegular price: $399.00padSale price: $349.95pad
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