Home » GFB DV+ T9388 - Mercedes 2009-2025

GFB DV+ T9388 - Mercedes 2009-2025

SKU: 270160
€269,00 incl. VAT

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-3 business days.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch.

Terms for product returns:

  • You must return the ordered products within 14 days of receiving
  • The products must be unused and without damages
  • Commission fee for handling returns is 21,90€
  • For product returns, the customer is in charge of the return costs. Only door to door service (Express)
  • Shipping costs are not refunded

For international orders (outside of Europe) sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

  • Suspension
  • Engine Tuning
  • Engine Parts
  • Exhaust Systems
  • Fueling
  • Turbochargers/superchargers
  • Drivetrain
  • ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

The GFB DV+ T9388 is a high-performance diverter valve upgrade designed to improve boost control and throttle response in turbocharged Mercedes-Benz models. The DV+ retains the original electronic control, but replaces the factory valve's weak internal components with a more durable and precise design.

Improved boost pressure control

Factory diverter valves can leak or respond slowly on specially tuned engines. GFB DV+ eliminates these problems while maintaining OEM control and improving valve tightness and response time.

Result:

  • Smoother and more precise boost pressure control

  • Faster response to gas changes

  • Better power utilization throughout the rev range

  • Reduced risk of boost pressure leakage

Features

  • Retains original ECU control

  • Improves boost pressure stability

  • Faster and more precise valve operation

  • Reduces power loss and leaks

  • Withstands higher boost pressures than the factory valve

  • Plug & Play installation without software changes

The GFB DV+ T9388 is ideal for both standard and tuned configurations requiring:

  • Better reliability

  • Sharper throttle response feel

  • OEM-level compatibility

  • Trouble-free operation without error codes

Note! Certain models require 2 GFB valves.

Compatibility list:

  • MERCEDES-BENZ A-Class W176 A180/A200/A250 Turbo (2012-2018)
  • MERCEDES-BENZ A-Class W177 A160/A180/A200/A250e 1.3T (2018-On)
  • MERCEDES-BENZ A45 AMG (Facelift Models Only) (2015 - 2018)
  • MERCEDES-BENZ AMG GT 4.0TT (2019-On) Two Valves Required
  • MERCEDES-BENZ B-Class W247 B160/B180/B200/B250e (2018-On)
  • MERCEDES-BENZ B-Class W246 B180/B200/B220/B250 (2011-2019)
  • MERCEDES-BENZ C-Class C180/C200/C250/C300 Turbo (Not Kompressor) 2011-2018
  • MERCEDES-BENZ C-Class C300 2.0T (2019-On)
  • MERCEDES-BENZ C63 & C63 S AMG 4.0TT (2016-On) Two Valves Required
  • MERCEDES-BENZ CLA-Class C117 CLA180/CLA200/CLA220/CLA250 (2013-2019)
  • MERCEDES-BENZ CLA-Class C118 CLA180/CLA200/CLA250e 1.3T (2019-On)
  • MERCEDES-BENZ CLA35 AMG 2.0T (2020-On)
  • MERCEDES-BENZ CLA45 AMG (Facelift Models Only) 2016 - 2018
  • MERCEDES-BENZ E-Class W212 E200/E250 (2009-2016)
  • MERCEDES-BENZ E-Class W213 E200/E250/E300 (2016-2019)
  • MERCEDES-BENZ E-Class W213 E200/E250/E300 (2016-2019) Note : M270/M274 ENGINES ONLY
  • MERCEDES-BENZ E63 & E63 S AMG 4.0TT (2018-On) Two Valves Required
  • MERCEDES-BENZ G63 AMG 4.0TT (2018-On) Two Valves Required
  • MERCEDES-BENZ GLA-Class X156 GLA180/GLA200/GLA220/GLA250 (2014-2019)
  • MERCEDES-BENZ GLB-Class X247 GLB180/GLB200 (2018-On)
  • MERCEDES-BENZ GLC 200/250/300 (2015 - 2021)
  • MERCEDES-BENZ GLC43 AMG 3.0TT (2019-On) Two Valves Required
  • MERCEDES-BENZ GLC63 & GLC63 S AMG 4.0TT (2018-On) Two Valves Required
  • MERCEDES-BENZ S-Class S400 Note : Two Valves Required
  • MERCEDES-BENZ S63 AMG 4.0TT (2018-2020) Two Valves Required
  • MERCEDES-BENZ SLK 200/250 (R172)
  • MG MG 5 1.5T (2020-On)