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Forge Motorsport Blow Off Valve (BOV) Kit & Dump/Diverter Valve Upgrade for BMW N20 2.0 Turbo - Vent to Atmosphere Bypass/Recirc Replacement, CNC Piston Boost/Pressure Relief -

Forge Motorsport Blow Off Valve (BOV) Kit & Dump/Diverter Valve Upgrade for BMW N20 2.0 Turbo - Vent to Atmosphere Bypass/Recirc Replacement, CNC Piston Boost/Pressure Relief -

£215.49
£215.49
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Forge Motorsport vent-to-atmosphere valve for BMW 2.0 N20 engines

Unlock crisp throttle response, consistent boost pressure and that addictive turbo whoosh with Forge Motorsport’s CNC-machined aluminium piston valve. This direct-fit unit replaces the factory electronic recirculation valve on BMW’s 2.0 litre N20 petrol turbo, delivering a stronger seal under load and a clean, atmospheric release sound on lift-off. Perfect for daily-driven cars and remapped builds alike.

  • Robust billet aluminium piston design with no rubber diaphragm to split
  • Retains OEM ECU control for seamless integration and smooth drivability
  • Helps cure boost loss caused by tired or leaking stock recirc valves
  • Fast actuation for sharper response between shifts and reduced turbo lag
  • Ideal for stock calibration, Stage 1 and Stage 2 tuned N20 setups
  • Designed as a straightforward, direct replacement for the OE electronic valve

Vehicle compatibility

Compatible with BMW models using the N20 2.0 turbocharged petrol engine with an electronically controlled bypass valve:

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

Not suitable for B38, B48 or B58 engines.

Real-world confidence

We run this Forge valve on customer cars and our own projects at MJ Modifications and it delivers exactly what enthusiasts want: stable boost under load, a more responsive feel and that satisfying psshh on gear changes. Feedback from owners has been consistently positive, especially on tuned cars where the factory diaphragm valve can struggle to hold pressure.

Install and support

A simple swap for the standard electronic unit. Professional fitting recommended. For supply and install, contact MJ Modifications in Warwickshire for a quote at info@mjmodifications.co.uk.

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