Can I adjust the sound of the blow-off valve?

Yes, the GFB Hybrid TMS Dual Port valve includes blanking plugs. You can configure it for full recirculation, a 50/50 split, or full atmosphere venting to achieve your desired sound level.

Will this valve cause issues with my car's airflow meter?

No, this valve is specifically designed to be used on cars with sensitive airflow meters. Its dual-staged venting helps prevent common issues like backfiring and stalling that can occur with other types of blow-off valves.

What is the benefit of TMS technology?

TMS (Turbo Management System) technology helps to recover boost up to 30% faster after a gearshift. This means your turbo spools up more quickly, getting you back into the boost sooner when you accelerate.

GFB HYBRID TMS Dual Port 98-04 Subaru Forester XT

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Specifications

Brand: Go Fast Bits
Part #: T9200
UPC: 9328022002750

GFB HYBRID TMS Dual Port 98-04 Subaru Forester XT

Name: GFB HYBRID TMS Dual Port 98-04 Subaru Forester XT
Brand: Go Fast Bits
SKU: go-fast-bits-gfb-hybrid-tms-dual-port-98-04-subaru-forester-xt-t14-314709
Price: 234.81 USD
Availability: InStock

$234.81

Only 4 left in stock

Fits 2004-2005 Subaru Forester. GFB Hybrid TMS Dual Port blow off valve for improved boost response and adjustable sound.

Key Features

Fits 2004-2005 Subaru Forester.
Dual staged venting outlets can be configured for full recirculation, 50/50, or full atmosphere operation using provided plugs.
TMS technology offers up to 30% faster boost recovery on gearshift.
Designed to work with sensitive airflow meters, helping to prevent backfiring and stalling.
Direct fit, bolt-on installation.

⚠️ 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 this vehicle

Subaru Forester 2004-2005

Product Details

The GFB Hybrid TMS Dual Port blow-off valve uses a unique dual-staged venting system, a design pioneered by GFB. This means that at low valve lifts, most of the air is recirculated back into the intake. As you push the throttle harder and the valve opens further, more of the atmosphere venting port is exposed, giving you that signature blow-off sound. This design is particularly helpful for vehicles with sensitive airflow meters, as it helps prevent issues like backfiring or stalling while still letting you hear the turbo spool down.

What's really neat about this valve is its adaptability. It comes with a pair of blanking plugs, allowing you to tune the sound to your preference. You can set it up for full recirculation, a 50/50 split between recirculating and atmosphere venting, or full atmosphere venting for the loudest sound. Plus, the TMS technology helps recover boost up to 30% faster after a gearshift, meaning you get back into boost quicker when you need it.

This is a direct fit, bolt-on unit for your 2004-2005 Subaru Forester XT. It's a well-built piece that offers a lot of flexibility in both sound and performance tuning.