The GFB DV+ (T9388) is a direct drop-in replacement for the OEM diverter valve in late-model Mercedes-Benz turbo vehicles, including the CLA35 AMG 2.0T and CLA45 AMG. It retains the factory solenoid and ECU control while improving boost holding, sharpening throttle response and speeding boost recovery after a gearshift or brief throttle lift.
Specifications
| Type | Direct-replacement diverter valve |
| Line/Model | GFB DV+ (T9388) |
| Operation | Recirculating (factory location) |
| Fitment | Late-model Mercedes-Benz turbo (CLA35/CLA45 AMG and more) |
| Includes | Retains factory solenoid and ECU control |
| Warranty | Lifetime warranty (Australian-made) |
| Part Number | T9388 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2021 | Mercedes-Benz | AMG GT | Base |
| 2016-2024 | Mercedes-Benz | C300 | 4Matic |
| 2016-2024 | Mercedes-Benz | C300 | Base |
| 2015-2021,2023 | Mercedes-Benz | C63 AMG S | Base |
| 2014-2019 | Mercedes-Benz | CLA250 | 4Matic |
| 2014-2019 | Mercedes-Benz | CLA250 | Base |
| 2020-2023 | Mercedes-Benz | CLA35 AMG | 4Matic |
| 2015-2019 | Mercedes-Benz | CLA45 AMG | 4Matic |
| 2014,2016 | Mercedes-Benz | E250 | Bluetec |
| 2014,2016 | Mercedes-Benz | E250 | Bluetec 4Matic |
| 2017-2019 | Mercedes-Benz | E300 | 4Matic |
| 2017-2019 | Mercedes-Benz | E300 | Base |
| 2018 | Mercedes-Benz | E63 AMG S | 4Matic |
| 2019-2021 | Mercedes-Benz | E63 AMG S | 4Matic+ |
| 2019-2023 | Mercedes-Benz | G63 AMG | Base |
| 2015-2020 | Mercedes-Benz | GLA250 | 4Matic |
| 2015-2020 | Mercedes-Benz | GLA250 | Base |
| 2016-2021 | Mercedes-Benz | GLC300 | 4Matic |
| 2016-2021 | Mercedes-Benz | GLC300 | Base |
| 2019-2023 | Mercedes-Benz | GLC43 AMG | 4Matic |
| 2018-2021 | Mercedes-Benz | GLC63 AMG | 4Matic |
| 2018-2021 | Mercedes-Benz | GLC63 AMG S | 4Matic |
| 2018-2021 | Mercedes-Benz | S63 AMG | 4Matic |
| 2012-2015 | Mercedes-Benz | SLK250 | Base |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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