GFB DV+ T9358 Diverter Valve Upgrade for Mercedes-AMG M276 3.0TT

Serious C43 owners know the difference between “fast on paper” and fast in your hands. The factory diverter valves are the weak link in the M276 twin-turbo system. The GFB DV+ T9358 is the quick, affordable driver’s mod that instantly sharpens throttle response and gives you faster boost recovery between shifts — exactly what you feel when you’re rowing through gears or rolling on the throttle.

Important: Mercedes-AMG M276 3.0TT engines use two diverter valves. You need two (2) DV+ T9358 units for a complete upgrade.

• Immediate throttle sharpness
• Faster boost recovery between shifts
• Eliminates common factory boost leaks
• OEM solenoid retained for full ECU control
• Billet aluminum body + brass piston
• No tuning or resistors required

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AMG M276 3.0TT Platform Compatibility

Model	Years
C43 AMG 3.0 V6 Bi-Turbo	2017–2023
E43 AMG 3.0 V6 Bi-Turbo	2016–2018
GLC43 AMG 3.0 V6 Bi-Turbo	2016–2022
GLE43 AMG 3.0 V6 Bi-Turbo	2016–2022
S400 (W222) 3.0 V6 Bi-Turbo	2014–2017

Fits U.S.-market AMG M276 3.0TT vehicles listed above. Always verify engine code before ordering.

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Why Real C43 Drivers Upgrade to the GFB DV+

• Factory plastic internals leak under boost — the DV+ uses billet aluminum and a brass piston for rock-solid sealing
• Noticeably sharper throttle and faster boost recovery between shifts — the difference you actually feel when driving hard
• Pilot-actuated design gives progressive, predictable response instead of the sloppy factory valve
• Reduces turbo flutter and compressor surge on lift — keeps power delivery clean and consistent

It’s a cheap, 10-minute mod that makes your C43 feel tighter, more responsive, and more alive — exactly what serious drivers want.

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What You’ll Notice on the Road

• Crisp, immediate throttle response
• Faster boost recovery between shifts
• Smoother, stronger mid-range pull
• More confidence when you mat it

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Technical Highlights

• Part Number: T9358
• Engine Platform: Mercedes-AMG M276 3.0TT
• Quantity Required: 2 units per vehicle
• Construction: Billet aluminum body, brass piston
• Install: Direct replacement — 10 minutes per side

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FAQ

• Is this a blow-off valve?
  No. Modern AMG turbo engines use a recirculating diverter valve for smooth drivability and OEM reliability. The DV+ improves performance without loud vent-to-atmosphere noise.

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Upgrade your Mercedes-AMG M276 3.0TT today with two (2) GFB DV+ T9358 units. Instant driver-focused improvement — sharper throttle, faster boost recovery, and that “something’s different” grin every time you drive it.