Dump Recirculation Diverter Blow Off Valve Kit for BMW F20-F31

Upgrade your BMW turbo experience with our Dump Recirculation Diverter Blow Off Valve Kit designed for the F20–F31 chassis. This piston-type valve replaces the factory diaphragm unit, addressing common failures that can cause boost leaks and premature turbo wear. Built to be a lifetime serviceable solution, it delivers reliable operation, inhibits boost leaks, and preserves your engine’s performance without triggering unnecessary check engine warnings.

Engineered for compatibility with BMW models running the N20 2.0 turbo engine, including the popular F10, F20, and F30 platforms. The kit fits a range of chassis badged exemplars such as 125i, 225i, 220i, 228i, 320i, 328i, 520i, and 528i. Specifically, it targets the F20/F21 3/5-door hatchback (2012 onwards), F22/F23 2-door coupe/convertible (2014 onwards), and F30/F31 saloon/estate (2011 onwards). It’s the ideal upgrade for drivers seeking improved throttle response and a more precise, linear boost delivery without the noise usually associated with aftermarket BOVs.

The valve is CNC machined from billet aluminum and sealed with high-temperature Viton O-rings. It minimizes the vacuum space compared to other valves on the market, enabling a faster piston opening for quicker boost control. The result is sharper throttle response, more immediate acceleration feel, and reduced likelihood of boost leaks under higher boost pressures. This kit is specifically designed to be bolt-on and serviceable, so you can maintain peak performance without replacing the unit.

Benefits & Tips

• Sharper throttle response and more immediate boost control during gear shifts and aggressive driving.
• Reduced risk of boost leaks and turbo wear by eliminating diaphragm failure common in OEM valves.
• Quiet operation with the no-noise version option—maintains a refined cockpit ambience while delivering performance gains.

Product specifications

• Brand: NONE
• Model Name: BOV1184
• Item Type: Valves & Parts
• Material: Aluminum (CNC Billet Alloy)
• Displacement/Engine: For BMW 135/235 F20 N20 2.0 Turbo atmosphere
• Number of Cylinders: 4
• Special Features: For BMW 135/235 F20 N20 2.0 Turbo atmosphere
• Origin: Mainland China
• Scope of supply: 1 x Diverter valve kit

Package includes:

• 1 x Diverter valve kit

Warnings / Reminders

• This is a bolt-on, serviceable piston-style valve designed to work without triggering a check engine light when installed correctly.
• For best results, professional installation is recommended to ensure proper fitment and vacuum line routing.
• Available in a no-noise version for quieter operation in cockpit environments.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Language support: Not specified in the product data.

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