GFB DV+ T9388 Diverter Valve – Mercedes-Benz A/B/C/E/CLA/GLA/GLC & AMG 35/43/45/63 (M133, M139, M274, M276, M177) Direct-Fit Upgrade (GFB-T9388)






SKU: GFB-T9388
AUD 283.00
In stock
Brand: GFB
Direct-fit GFB DV+ performance diverter valve for turbocharged Mercedes-Benz and Mercedes-AMG models – A-Class, B-Class, C-Class, E-Class, CLA, GLA, GLB, GLC, GLE, S-Class, SLK and AMG 35/43/45/63 (M133, M139, M264, M274, M276 and M177/M178 engines). Replaces the weak factory plastic diverter valve with a billet piston valve that holds boost and responds faster while keeping full ECU control. Twin-turbo V6/V8 models need two valves. Part number GFB-T9388.GFB DV+ T9388 – Performance Diverter Valve for Mercedes-Benz & Mercedes-AMG
The GFB DV+ T9388 is a direct bolt-on upgrade for the factory diverter valve fitted across the modern turbocharged Mercedes-Benz range – from the A180 and C200 through to the A45 S, C63 S and AMG GT. Mercedes have pushed these engines to the limit from the factory; the DV+ gives them a diverter valve to match.
The DV+ retains the factory ECU-controlled solenoid and recirculates the vented air, so there are no check-engine lights, no retune and no change to driveability. Behind the solenoid, a CNC-machined billet aluminium piston and body replace the heat-prone plastic factory valve – sealing properly under boost and reacting faster between shifts.
Why upgrade to the DV+
- Holds boost – the factory plastic valve is a known leak point on tuned and high-mileage cars; the DV+ piston seals reliably at any boost level.
- Faster response – pilot-actuated piston opens and closes quicker than the OEM valve for sharper throttle and quicker boost recovery.
- Retains full ECU control – re-uses the factory solenoid coil and plug.
- Built to last – billet aluminium replaces plastic in the hottest part of the engine bay.
- Direct fit – no cutting, splicing or adaptors required.
Vehicle fitment
Models marked ×2 are twin-turbo and require two valves.
- A-Class – W176 A180/A200/A250 (2012–18), A45 AMG W176 M133 facelift (2015–18), W177 A160/A180/A200/A250e 1.3T (2018-on), A35 AMG W177 (2018-on), A45 AMG W177 M139 (2019-on)
- B-Class – W246 B180/B200/B220/B250 (2011–19), W247 B160/B180/B200/B250e (2018-on)
- CLA – C117 CLA180/200/220/250 (2013–19), CLA45 AMG facelift (2016–18), C118 CLA180/200/250e 1.3T (2019-on), CLA35 AMG C118 (2019-on), CLA45 S AMG C118 M139 (2019-on)
- C-Class – C180/C200/C250 turbo, not Kompressor (2011–18), C300 W205 M274 (2014–18), C300 W205 M264 (2019–21), C43 AMG W205 M276 (2017–23) ×2, C63 & C63 S AMG 4.0TT (2016-on) ×2
- E-Class / CLS / S-Class – E200/E250 W212 (2009–16), E200/E250/E300 W213 (2016–19), E400 W212 M276 3.0TT (2013–14) ×2, E43 AMG W213 M276 (2016–23) ×2, E63 & E63 S AMG 4.0TT (2018-on) ×2, CLS400 3.0TT (2010–18) ×2, S400 W222 3.0TT M276 (2014–17) ×2, S63 AMG 4.0TT (2018–20) ×2
- GLA / GLB – GLA X156 GLA180/200/220/250 (2014–19), GLA45 X156 facelift (2017–19), GLA45 S H247 M139 (2020-on), GLB X247 GLB180/200 (2018-on), GLB35 X247 (2019-on)
- GLC / GLE – GLC 200/250/300 X253 M274 (2015–21), GLC43 AMG M276 3.0TT (2016–22) ×2, GLC43 AMG 3.0TT (2019-on) ×2, GLC63 & GLC63 S AMG 4.0TT (2018-on) ×2, GLE43 AMG 3.0TT (2016–22) ×2
- G-Class / AMG GT / SLK – G63 AMG 4.0TT (2018-on) ×2, AMG GT 4.0TT (2019-on) ×2, SLK 200/250 R172
- Other makes – Hyundai i30 1.5T-GDI PD (2020-on), MG 5 1.5T (2020-on)
Use the vehicle selector on this page to confirm fitment for your exact model and year.
Installation
The DV+ fits in the factory location using the factory solenoid. On most four-cylinder models it is a 20–30 minute job; twin-turbo V6/V8 models take longer due to valve access. Full instructions are included.
247 Storefront is an authorised Australian GFB stockist. Genuine GFB product, shipped from Sydney with full manufacturer warranty.
- Part number
- GFB-T9388
- Brand
- GFB (Go Fast Bits)
- Type
- DV+ electronic diverter valve (recirculating)
- Construction
- CNC-machined billet aluminium body and piston
- Fits
- Mercedes-Benz / Mercedes-AMG turbo models 2009-on (M133, M139, M264, M274, M276, M177/M178), Hyundai i30 1.5T, MG 5 1.5T
- Quantity required
- 1 per turbo – twin-turbo V6/V8 models need two
- ECU control
- Retains factory solenoid – no tune required
- Installation
- Direct bolt-on, factory location
- Made in
- Australia
Vehicle fitment
- HYUNDAI i30 2020
- MERCEDES-BENZ A-CLASS 2012 2018
- MERCEDES-BENZ A-CLASS 2015 2018
- MERCEDES-BENZ A-CLASS 2018
- MERCEDES-BENZ A-CLASS 2018
- MERCEDES-BENZ A-CLASS 2019
- MERCEDES-BENZ AMG GT 2019
- MERCEDES-BENZ B-CLASS 2011 2019
- MERCEDES-BENZ B-CLASS 2018
- MERCEDES-BENZ C-CLASS 2011 2018
- MERCEDES-BENZ C-CLASS 2014 2018
- MERCEDES-BENZ C-CLASS 2016
- MERCEDES-BENZ C-CLASS 2017 2023
- MERCEDES-BENZ C-CLASS 2019 2021
- MERCEDES-BENZ CLA 2013 2019
- MERCEDES-BENZ CLA 2016 2018
- MERCEDES-BENZ CLA 2019
- MERCEDES-BENZ CLA 2019
- MERCEDES-BENZ CLA 2019
- MERCEDES-BENZ CLS 2010 2018
- MERCEDES-BENZ E-CLASS 2009 2016
- MERCEDES-BENZ E-CLASS 2013 2014
- MERCEDES-BENZ E-CLASS 2016 2019
- MERCEDES-BENZ E-CLASS 2016 2023
- MERCEDES-BENZ E-CLASS 2018
- MERCEDES-BENZ G-CLASS 2018
- MERCEDES-BENZ GLA 2020
- MERCEDES-BENZ GLA-CLASS 2014 2019
- MERCEDES-BENZ GLA-CLASS 2017 2019
- MERCEDES-BENZ GLB 2018
- MERCEDES-BENZ GLB 2019
- MERCEDES-BENZ GLC 2015 2021
- MERCEDES-BENZ GLC 2016 2022
- MERCEDES-BENZ GLC 2018
- MERCEDES-BENZ GLC 2019
- MERCEDES-BENZ GLE 2016 2022
- MERCEDES-BENZ S-CLASS 2014 2017
- MERCEDES-BENZ S-CLASS 2018 2020
- MERCEDES-BENZ S-CLASS
- MERCEDES-BENZ SLK
- MG MG 5 2020
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