How do I adjust the sound of the blow off valve?

The Deceptor Pro II features an electronic control system that allows you to infinitely adjust the venting bias. This means you can change how much air is recirculated versus vented to atmosphere directly from the driver's seat.

Can this blow off valve cause drivability issues like stalling?

The controller can be configured to limit the maximum venting ratio. This helps prevent common issues like backfiring and stalling that can occur when too much air is vented to atmosphere, allowing you to enjoy the sound without the problems.

What is included in the kit?

The kit includes the electronically adjustable blow off valve, a wiring loom, and all necessary components for a direct bolt-on installation on compatible vehicles. It requires a 12V power supply.

GFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit

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Specifications

Brand: Go Fast Bits
Part #: T9533
UPC: 9328022000787

GFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit

Name: GFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit
Brand: Go Fast Bits
Price: 472.68 USD
Availability: InStock

$472.68

Only 4 left in stock

GFB Deceptor Pro II Blow Off Valve Kit for 03-10 Evo 8-10. Electronically adjust your BOV sound on the fly.

Key Features

Fits 2003-2015 Mitsubishi Lancer, 1991-1999 Mitsubishi 3000GT, 1991-1996 Dodge Stealth, and more.
Electronically adjustable venting bias allows you to control the BOV sound from the driver's seat.
Can limit the maximum venting ratio to prevent issues like backfiring and stalling.
Capable of holding over 100 PSI of boost pressure.
Manufactured in Australia in accordance with ISO 9001 standards.
Includes a wiring loom and requires only 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 (GFB) is known for making well-built performance parts for turbocharged cars. This Deceptor Pro II Blow Off Valve (BOV) kit is a great example, letting you control the sound of your turbo's air release right from the driver's seat. If you like that signature turbo flutter but don't want it all the time, this is the part for you. It fits a range of vehicles, including the Mitsubishi Lancer, Dodge Stealth, and Subaru Legacy.

What makes this BOV unique is its Venting Bias Adjustment System, controlled electronically. You can infinitely adjust how much air is recirculated back into the intake versus how much is vented to the atmosphere. This means you can dial in the sound you want, from a quiet recirculate to a loud atmospheric vent. Plus, if your car has issues like backfiring or stalling when venting too much air, you can set a limit on how much air is vented to atmosphere, so you get the sound without the drivability problems. It's built in Australia to ISO 9001 standards and can hold over 100 PSI of boost, so it's made to last.

The kit comes with a wiring loom and only needs a 12V power supply, making installation more straightforward. It's designed as a direct bolt-on for many applications, so you won't need to do any custom fabrication.