How do I control the sound of the blow-off valve?

The Deceptor Pro II features a patented Venting Bias Adjustment System with remote electronic control. This allows you to infinitely vary the amount of air that is recirculated versus vented to the atmosphere, changing the sound from your driver's seat.

Can this valve cause issues like backfiring or stalling?

The controller can be configured to limit the maximum venting ratio. This helps prevent common issues such as backfiring and stalling that can occur when a significant amount of air is vented to atmosphere.

What is included with the Deceptor Pro II?

The valve comes with a wiring loom that requires only a 12V power supply for operation. It is manufactured to ISO 9001 standards and is capable of holding over 100 PSI of boost.

GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet

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Specifications

Brand: Go Fast Bits
Part #: T9525
UPC: 9328022000770

GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet

Name: GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet
Brand: Go Fast Bits
SKU: go-fast-bits-gfb-deceptor-pro-ii-blow-off-valve-25mm-inlet-25mm-outlet-t14-4331596
Price: 472.68 USD
Availability: BackOrder

$472.68

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet. Electronically adjust sound from recirculated to atmospheric.

Key Features

Fits a wide range of vehicles including Audi A4, TT, Volkswagen Golf, Jetta, Passat, and Saab 9-3, 9-5.
Electronically adjustable venting bias allows infinite control over recirculated vs. atmospheric air.
Patented Venting Bias Adjustment System lets you control the sound of your blow-off valve on-the-fly.
Can limit maximum venting ratio to prevent issues like backfiring and stalling on certain vehicles.
Capable of holding over 100 PSI of boost pressure.
Includes a wiring loom and only requires a 12V power supply for operation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Go Fast Bits is known for making well-built performance parts for turbocharged cars. Their Deceptor Pro II Blow Off Valve is a prime example, giving you control over that signature turbo sound. This isn't just about noise; it's about having the flexibility to choose how much of the turbo's release sound you hear, from a quiet recirculate to a full atmospheric vent, all adjustable from your driver's seat.

What makes this valve unique is its patented Venting Bias Adjustment System, controlled electronically. You can infinitely change the ratio of air that's recirculated back into the intake versus vented to the atmosphere. This is super handy because some cars can have issues like backfiring or stalling if too much air is vented. The Deceptor Pro II lets you limit the maximum venting ratio, so you can enjoy the blow-off sound without the headaches. It's built to hold over 100 PSI of boost and comes with a wiring loom that only needs a 12V power supply, making installation more straightforward. It's manufactured in Australia to ISO 9001 standards, meaning it's a well-built piece of equipment.

This universal valve fits a wide range of vehicles, including many Audi, Volkswagen, and Saab models from the late 90s and early 2000s. While it offers a lot of adjustability, keep in mind it's not CARB approved and cannot be shipped to California. You'll also want to check the manufacturer's instructions for any specific installation requirements or hardware that might be needed for your particular setup.