Go Fast Bits GFB DV+ (DV Plus) Turbo Diverter/Bypass/Recirculation Valve Upgrade for BMW 1 Series 135i E82/E88 2007-2013 N54 Twin Turbo - BOV Alternative, Direct-Fit Boost Control, Compressor Surge Fix, 306hp mirror We recommend professional preparation

We recommend professional preparation

Finishes available: Matt Black or Frozen Gold

All options are based on OE dimensions and are heat treated and hand finished for durability and consistency

speed humps and rough B-roads while boosting confidence in quick direction changes

Race-bred compound for uncompromised performance when lap consistency matters

Go Fast Bits GFB DV+ (DV Plus) Turbo Diverter/Bypass/Recirculation Valve Upgrade for BMW 1 Series 135i E82/E88 2007-2013 N54 Twin Turbo - BOV Alternative, Direct-Fit Boost Control, Compressor Surge Fix, 306hp mirror We recommend professional preparationGFB DV+ Turbo Bypass Upgrade for BMW 1 Series 135i E82 E88 2007 to 2013 Unlock stronger, more consistent boost on your 1 Series 135i with the GFB DV+ turbo bypass upgrade. This smart recirc solution replaces the weak factory unit on the N54 twin turbo engine, improving boost hold, pedal response and shift recovery while keeping cabin noise civilised. No flutter, no whoosh, just clean, efficient performance that feels OEM plus every time you drive. Why