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Forge Motorsport Atmospheric (VTA) Blow Off Valve (BOV) / Dump Valve / Diverter Valve (DV) for BMW N20 2.0 Turbo – Turbo Pressure Relief Upgrade Kit, Plug-and-Play – Fits F20 F30 F10 125i 220i 225i 228i 320i 328i 520i 528i

Forge Motorsport Atmospheric (VTA) Blow Off Valve (BOV) / Dump Valve / Diverter Valve (DV) for BMW N20 2.0 Turbo – Turbo Pressure Relief Upgrade Kit, Plug-and-Play – Fits F20 F30 F10 125i 220i 225i 228i 320i 328i 520i 528i

£215.49
£215.49
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Transform your BMW N20 2.0T with Forge Motorsport’s vent to atmosphere pressure relief valve. This bolt-on turbocharger valve upgrade replaces the factory electronic bypass unit to deliver confident boost control, leak-free performance and that addictive turbo whoosh every time you lift off. Ideal for standard cars and a proven supporting mod for Stage 1 and Stage 2 tuning on the N20.

Vehicle compatibility

For petrol 2.0 turbo N20 engines with the electronic bypass valve, including:

  • F20 chassis
  • F30 chassis
  • F10 chassis
  • 125i, 220i, 225i, 228i
  • 320i, 328i
  • 520i, 528i

Why choose this turbo valve upgrade

  • Eliminates common membrane splits in the stock unit that can bleed boost and sap power without showing a fault light.
  • Precision piston design with no diaphragm to fail for consistent sealing under elevated boost pressure.
  • Robust all aluminium construction for heat resistance and long-term reliability on tuned and hard-driven cars.
  • Keeps OEM ECU control of actuation for smooth drivability and factory-like integration.
  • Perfect accompaniment to a remap, intake and exhaust for dependable charge control.

What you can expect

  • Audible vent to atmosphere sound under lift-off that enthusiasts love.
  • Stronger boost holding compared with the standard plastic assembly.
  • Fast, repeatable operation that supports stable power delivery.
  • Simple swap with plug-and-play electrical connection and no coding required.

Tried, trusted, recommended

We run this Forge Motorsport valve on our own N20 builds and customer cars. Feedback has been consistently positive, with owners praising the clean boost control, durable engineering and the crisp turbo sound. A go-to choice for 320i, 328i, 125i, 228i, 520i and 528i drivers looking for reliability and engagement in one upgrade.

Popular searches it suits

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Fitting and support

Professional installation recommended. For fitting, speak to MJ Modifications in Warwickshire and request a quote at info@mjmodifications.co.uk. We know the N20 platform inside out and can advise on pairing this valve with your current or future ECU calibration.

Important note

For N20 engines only. Not suitable for B38, B48 or B58 applications.

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