GFB DV+ Turbo Diverter Valve Upgrade (Recirc/Bypass) for BMW M135i F20 N55 2011-2018, 320hp 1 Series - Blow Off Valve (BOV) Replacement, Boost Control Valve, Plug & Play

Transform the way your BMW 1 Series drives with a premium turbo recirculation valve upgrade designed specifically for the M135i F20 320 hp, 2011 to 2018. This GFB DV+ unit is the smart choice for enthusiasts who want crisp acceleration, stable boost and OEM-like refinement without any unnecessary whoosh. It is a direct replacement for the factory turbocharger bypass valve on the N55-powered M135i, delivering rapid boost control and dependable operation day in, day out.

We have installed this upgrade on customer cars and our own builds, and the feedback is consistently outstanding. Expect stronger mid-range punch, a more immediate pedal feel and smoother on-off throttle transitions. It keeps everything clean and quiet while unlocking the responsiveness you expect from a proper performance valve.

• Immediate throttle response for sharper get-up-and-go
• Quicker boost recovery between gear changes for seamless acceleration
• Stops pressure loss from the stock unit to maintain consistent boost
• Retains the original electronic control strategy for fault-free operation
• Durable, quality construction engineered for long-term reliability
• Direct replacement design - no fuss, no noise, all go

Ideal for: BMW 1 Series M135i F20 320 hp hatchback, model years 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018. Perfect for drivers seeking a silent, stealthy upgrade that enhances turbo response without adding blow-off sounds.

Why choose this upgrade for your M135i:

• Helps the turbo hold target pressure under load
• Refined, factory-like operation with noticeably improved performance
• Designed to address common boost loss from the OE unit
• Precision engineered for consistent, repeatable control of turbo pressure

Fitting and support: Want it installed professionally? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quick quote and expert advice.

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