Forge Motorsport Recirculation/Diverter (DV) Valve Kit FMDVF20R for BMW 135i/235i N55 3.0 Turbo (F20)
Forge Motorsport Recirculation/Diverter (DV) Valve Kit FMDVF20R for BMW 135i/235i N55 3.0 Turbo (F20)
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Forge Motorsport Recirculation/Diverter (DV) Valve Kit FMDVF20R for BMW 135i/235i N55 3.0 Turbo (F20)

£211.67
£211.67
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Forge Recirculation Valve and Kit for BMW 135/235 N55 3.0 Turbo F20

Part Number: FMDVF20R

Upgrade the reliability and boost control of your BMW 135i or 235i N55 3.0 turbo with the Forge Motorsport Recirculation Valve and Kit. Designed for F20 models with the factory electronically controlled bypass valve, this piston-based diverter valve is a direct replacement that delivers quiet operation, consistent boost, and long-term durability. It is the ideal performance upgrade for remapped cars and a proven fix for common OEM valve failures.

Why choose this Forge recirculation valve

  • Engineered reliability – fully aluminium, piston-based construction with no diaphragm to split or fail
  • Retains OEM ECU control while using a pressure-vacuum operated piston for stronger, more consistent boost management
  • Quiet in operation – true recirculation valve, not a loud blow off valve
  • Recommended for tuned cars with increased boost from ECU remaps and for unmodified cars operating in warmer climates
  • Prevents common OEM issues where the stock electronic bypass valve can be blown open under boost without triggering a check engine light
  • Avoids the risk of the factory valve breaking apart on removal and plastic fragments entering the turbo

This Forge diverter valve replaces the fragile factory electronic bypass valve with a robust, serviceable unit that holds boost more effectively, improves throttle response, and maintains smooth drivability. It is the smart upgrade for BMW N55 owners seeking a dependable recirculation valve solution.

Compatibility and use

For BMW 135/235 N55 3.0 Turbo engines in F20 chassis models with electronically controlled bypass valves. Ideal for cars running Stage 1 or Stage 2 ECU software upgrades, as well as stock vehicles where reliability and consistent boost are priorities.

What is included

  • 1 x FMDVF20R Valve
  • 1 x 3000 mm of 4 mm Vacuum Tube
  • 1 x 100 mm of 6 mm Vacuum Tube
  • 1 x 50 mm of 6 mm Vacuum Tube
  • 1 x Solenoid, Bracket, and Screws
  • 10 x Cable Ties
  • 1 x Uprated Blue Spring
  • 1 x 8-4-8 T Piece
  • 1 x Forge USB Instructions
  • 1 x Forge Keyring and Sticker

If you wish to tailor valve response to your setup, a spring tuning kit is available separately.

Fitting and support

Professional installation recommended. Nforcd offers fitting and setup in Warwickshire. Request a quote at Sales@nforcd.com.

Trusted by Nforcd and our customers

We have supplied and fitted this Forge recirculation valve on numerous N55-powered BMW 135i and 235i cars with excellent results. Customers report stronger, more stable boost under load, improved reliability over the stock unit, and OEM-smooth, quiet operation.

SEO-friendly details

Forge Motorsport Recirculation Valve Kit FMDVF20R for BMW 135i 235i N55 3.0 Turbo F20. Also known as a diverter valve, DV, recirc valve, dump valve replacement, and electronic bypass valve upgrade. Direct OEM replacement, aluminium piston valve, quiet operation for daily-driven and performance-tuned N55 engines.