CTS TURBO 1.8T DIVERTER VALVE 1" (1.8T)

The CTS Turbo 1" diverter valve is purpose-built for 1.8T-equipped Audi and Volkswagen platforms including the B5 A4, S4, Passat and 8N TT. This upgraded valve replaces the factory diverter with a precision-machined billet aluminium body and reinforced spring assembly that eliminates boost leaks under high-pressure conditions. Ideal for tuned engines running increased boost levels, it delivers faster recirculation response and maintains consistent boost pressure between gear changes. Direct bolt-in fitment ensures straightforward installation for workshop environments.