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GFB T9388 DV+ Diverter Valve for VAG 1.4L TSI Engines

Manufacturer

GFB - Go Fast Bits

<h3>About GFB – Go Fast Bits</h3><p><strong>Go Fast Bits (GFB)</strong> is one of the most respected names in forced-induction performance, born from a genuine enthusiast's frustration with the quality of aftermarket turbo parts available in the late 1990s. Founded in Australia in 1997, GFB's origin story traces back to founder and engineer John Adrian, who — fed up with the compromises of off-the-shelf components on his Subaru WRX — set out to design better products from the ground up. The result was a brand built entirely on engineering integrity, real-world testing, and a refusal to sacrifice daily drivability for performance.</p><p>From the very start, innovation has been in GFB's DNA. In 1999, the company pioneered the dual-port blow-off valve design — a world-first that allowed turbocharged vehicles to vent to atmosphere without causing the stalling and backfiring problems that plagued MAF-equipped cars. That breakthrough gave birth to the iconic &quot;Hybrid&quot; valve, and the underlying technology was so effective it has since been adopted by virtually every other BOV manufacturer in the market. GFB followed that up in 2001 with a patented adjustable blow-off system that allows venting bias to be continuously varied between full recirculation and full atmosphere. These milestones cemented GFB's position as a genuine innovator, not just another parts supplier.</p><p>At the heart of GFB's valve lineup is their proprietary <strong>Turbo Management System (TMS)</strong> technology. Found across their <a href="/5232-gfb-go-fast-bits-turbocharger-blow-off-valve-14134">turbocharger blow off valves</a> and <a href="/5232-gfb-go-fast-bits-diverter-valve-4952">diverter valves</a>, TMS controls the rate at which pressurized air is released from the system when the throttle closes. By maintaining as much boost pressure as possible in the intercooler during a gearshift or momentary throttle lift, GFB valves sharpen throttle response and dramatically reduce turbo lag — delivering faster boost recovery than a factory bypass valve.</p><p>GFB's product range extends well beyond valves. Their <a href="/5232-gfb-go-fast-bits-turbocharger-electronic-boost-controller-18167">electronic boost controllers</a> and <a href="/5232-gfb-go-fast-bits-turbocharger-manual-boost-controller-16530">manual boost controllers</a> give tuners precise command over boost levels, with options suited to everything from a lightly modified daily driver to a full track build. For vehicles running factory electronic diverter valves, GFB's <a href="/5232-gfb-go-fast-bits-turbocharger-diverter-valve-20923">turbocharger diverter valves</a> — such as the DV+ and VTA ranges — offer direct-fit upgrades that improve sealing, throttle response, and reliability compared to the original plastic OEM units.</p><p>All GFB products are proudly Australian-made and manufactured in accordance with the <strong>ISO 9001 quality management system</strong>, ensuring consistent precision across every unit that leaves the factory. Whether you're chasing a cleaner throttle response on a street car or extracting every last pound of boost on a tuned platform, GFB's engineering-first philosophy means their products are designed to perform hard without making the car difficult to live with every day.</p>

Part Number

T9388
07/21/2036 11:39 PM
Sale Price

$205.16

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The GFB T9388 is a performance diverter valve designed specifically for Volkswagen Audi Group (VAG) 1.4L TSI turbocharged engines. This direct bolt-on replacement valve is part of GFB's proven DV+ product line, engineered to solve the common issues associated with factory diverter valves including boost leaks, inconsistent turbo response, and premature valve failure.

Key Features:

  • Direct OEM replacement for VAG 1.4L TSI engines - no modifications required
  • Precision-machined brass piston for superior sealing and durability compared to plastic OEM valves
  • Anodized billet aluminum body for maximum strength and corrosion resistance
  • Retains factory ECU control for proper boost regulation and drivability
  • Eliminates common boost leak issues that plague stock diverter valves
  • Improves throttle response and turbo efficiency across the RPM range
  • Backed by GFB's reputation for quality performance products

The DV+ design philosophy maintains the OEM recirculating function while upgrading internal components to handle higher boost pressures and deliver reliable long-term performance. Installation is straightforward using basic hand tools, making this an ideal upgrade for enthusiasts seeking improved reliability and response from their turbocharged TSI engine.

Products specifications

Prop 65 - Short Label

prop65_warning.jpg

Prop 65 (C, R or CR)

CR

Adjustable

No

Good website

Great so far,will see if i get it in the 2 day shipping.

Delivery speed is very fast

Late but ok.

Very Quick

Got the lift kit faster than any other company I have dealt with. I highly recombed them per my experience.

Nice website. Shipping very expensive.

super easy to use

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