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Forge Motorsport BMW N20 2.0T Recirc Diverter Valve DV/CBV (F20 F22 F30 F10) 125i 220i 225i 228i 320i 328i 520i 528i - Piston Compressor Bypass/Boost Relief Valve Upgrade - Turbo Recirc Dump/BOV Replacement, ECU Compatible - OEM Fit

Forge Motorsport BMW N20 2.0T Recirc Diverter Valve DV/CBV (F20 F22 F30 F10) 125i 220i 225i 228i 320i 328i 520i 528i - Piston Compressor Bypass/Boost Relief Valve Upgrade - Turbo Recirc Dump/BOV Replacement, ECU Compatible - OEM Fit

£183.15
£183.15
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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.

BMW N20 turbo recirc valve upgrade by Forge Motorsport

Transform the way your 2.0 litre turbo BMW drives with this piston-operated compressor bypass unit from Forge. It replaces the fragile factory membrane-style assembly that is known to leak under load, restoring solid boost control, sharper throttle response and dependable performance on spirited road use and remapped setups. Built from precision machined aluminium for strength and heat resistance, this is a direct-fit, plug-in solution that works with the original electronic control system on the N20 engine.

Reasons enthusiasts choose this upgrade

  • Piston-driven alloy body with no rubber membrane to split
  • Compatible with the factory electronic solenoid and ECU strategy
  • Tight sealing under charge pressure for consistent power delivery
  • Fast actuation on lift-off for reduced turbo lag between shifts
  • Ideal for Stage 1 and Stage 2 remaps as well as healthy standard cars
  • Direct replacement with OEM-style connections and vacuum reference

What it improves

  • Helps prevent boost loss caused by a torn OEM diaphragm
  • Smoother charge pressure management and stable target boost
  • Crisper throttle modulation and better spool recovery
  • Long-term reliability thanks to robust, serviceable construction

Fitment - BMW N20 2.0 petrol turbo

  • F20 1 Series - 125i
  • F22 2 Series - 220i, 225i, 228i
  • F30 3 Series - 320i, 328i
  • F10 5 Series - 520i, 528i

Suits the BMW four-cylinder N20 turbocharged engine with the factory electronically controlled bypass assembly.

Proven at MJ Modifications

We have installed this unit on multiple N20 platforms at our Warwickshire workshop and customer feedback has been excellent. Drivers report steadier boost, cleaner transitions on gear changes and renewed confidence in reliability. For professional fitting, request a quote at info@mjmodifications.co.uk.

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