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

You can adjust the sound by simply twisting the adjustment ring on the valve. This allows you to infinitely vary the bias between recirculating air and venting it to the atmosphere, changing the sound from silent to loud.

Will this valve cause my car to stall or backfire?

The GFB Respons valve is designed to help prevent issues like backfiring and stalling that can occur with fixed-ratio atmosphere-venting BOVs. Its adjustable bias allows you to tune it for your specific vehicle.

What is GFB's TMS Technology?

TMS Technology, which stands for Throttle Management System, is designed to ensure rapid boost recovery when you shift gears and maintain optimal throttle response. It helps the engine perform smoothly even with the modified blow-off valve.

GFB 15+ Subaru WRX 2.0L (FA20DIT) AWD Sedan TMS Respons Blow Off Valve Kit

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Specifications

Brand: Go Fast Bits
Part #: T9007
UPC: 9328022002231

GFB 15+ Subaru WRX 2.0L (FA20DIT) AWD Sedan TMS Respons Blow Off Valve Kit

Name: GFB 15+ Subaru WRX 2.0L (FA20DIT) AWD Sedan TMS Respons Blow Off Valve Kit
Brand: Go Fast Bits
Price: 320.85 USD
Availability: InStock

$320.85

In Stock

Fits 2015-2020 Subaru WRX. GFB TMS Respons Blow Off Valve Kit. Adjust sound from silent to loud without stalling.

Key Features

Fits 2015-2020 Subaru WRX and 2014-2018 Subaru Forester.
Features patented Venting Bias Adjustment to control sound from full recirc (silent) to full atmosphere (loud).
Infinitely adjustable venting bias by simply twisting the adjustment ring.
Utilizes GFB's TMS Technology for rapid boost recovery and optimum throttle response.
Built to withstand boost pressures of 100psi or more.
Not CARB approved and cannot be shipped to California.

⚠️ 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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Fits these vehicles

Subaru Forester 2014-2018
Subaru WRX 2015-2020

Product Details

Go Fast Bits is known for making well-built performance parts that focus on real-world drivability. If you're looking to change the sound of your 2015-2020 Subaru WRX's blow-off valve (BOV) without causing issues like stalling or backfiring, the GFB Respons is a solid option. This kit lets you tune how much air is vented to the atmosphere versus recirculated back into the system, giving you control over the sound from completely silent to a loud, noticeable vent.

What makes this valve stand out is its patented Venting Bias Adjustment. You can infinitely change the sound by simply twisting the adjustment ring. This means you can get that desired blow-off sound without sacrificing smooth operation. GFB's TMS Technology is also built-in, which helps with quick boost recovery after shifting gears and maintains good throttle response. Plus, it's built to handle boost pressures up to 100psi, which is more than most turbos can produce, so it's not going to be a weak link in your system.

This kit is designed as a direct fit for your WRX. Remember, it's not CARB approved, so it cannot be shipped to California. Make sure to check the manufacturer's installation instructions for any specific details regarding the installation process.