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Performance M

Forge Motorsport

Forge Motorsport

£215.49
£215.49
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Performance Vent-To-Atmosphere Valve Upgrade for BMW N20 2.0 Petrol Turbo

Give your N20-powered BMW a sharper, more consistent boost response and that addictive turbo whoosh. This Forge Motorsport vent-to-air pressure relief valve is a bolt-on, plug-in replacement for the factory electronic valve, delivering stronger boost control, superb durability and a crisp blow-off sound on throttle lift.

Why this upgrade stands out

  • Billet aluminium body for strength and thermal stability
  • Piston-operated design with no fragile rubber membrane to split
  • Direct-fit unit that works with the original electronic control system
  • Ideal for remapped cars running higher charge pressure, also excellent on standard engines
  • Produces a clean, pronounced vent-to-atmosphere sound without fuss
  • Designed to help maintain stable boost and consistent power delivery

Stop boost loss from the stock valve

The factory diaphragm on many N20 engines can tear, causing pressure loss and soft performance. It can happen without a warning light. This Forge piston valve removes that weak point, helping to prevent leaks and keeping your turbocharger holding target boost more reliably on both tuned and unmodified cars.

Confirmed fitment

For BMW models with the N20 2.0 petrol turbo and an electronically controlled bypass valve:

  • F20, F21: 125i, 225i, 220i, 228i
  • F30, F31, F34: 320i, 328i
  • F10, F11: 520i, 528i

Not compatible with B38, B48 or B58 engines.

What is included

  • Forge Motorsport vent-to-atmosphere replacement valve for BMW N20
  • Engineered to integrate with factory ECU control for hassle-free installation

Proven in the real world

We have fitted this unit to N20 vehicles and the feedback is consistently positive. Customers love the improved reliability, the sharper boost behaviour and the clean turbo sound. It is a go-to pressure relief valve solution for enthusiasts who want performance and peace of mind.

Professional fitting

Want it installed by specialists who know these cars inside out? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search terms to help you find it fast

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