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 Retains all factory adaptive settings

Retains all factory adaptive settings and driving modes

quicker response and a stunning deep concave look

carbon fibre aerofoil

It is a serious upgrade for drivers who want control and confidence without compromising build quality

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

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 Retains all factory adaptive settingsGFB 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