GFB - DV+ Diverter Valve Upgrade - BMW N20 / N55 bmw-4-series-fxx---13-19-m4---431---450---460-esi8206236 For the Audi A4 /

For the Audi A4 / S4 (B9 / B9

The hoses are precisely modelled on the original parts to ensure a perfect fit and easy installation

even for less experienced mechanics

Includes a free tune update for existing IE dual-pulley tunes

Coil spring sleeves included

GFB - DV+ Diverter Valve Upgrade - BMW N20 / N55 bmw-4-series-fxx---13-19-m4---431---450---460-esi8206236 For the Audi A4 /The DV+ diverter valve Upgrade from GFB offers a reliable upgrade for BMW turbo engines, particularly the N20 and N55 engines. This upgrade resolves common issues such as boost leaks and reduced service life of factory diverter valves, whilst also delivering improved performance. Thanks to the pilot actuation system, performance is optimised in both standard and modified engines. This design retains what works and replaces what doesnt, making it a