The BD-Diesel T3-T4 exhaust manifold adapter allows you to adapt your stock T3 flange exhaust manifold to a T4 turbo, saving you the time of a full manifold swap. This is great for racing applications or multi-use trucks to keep you behind the wheel longer and under the hoodless.

The BD Diesel adapter flange makes for an inexpensive alternative to replacing the manifold and allows for quicker changes back and forth from T4 to T3 turbos. The large footprint of the T6 turbo can be bolted to a T4 manifold or a T4 Turbine Diverter Valve with our dual throat adapter flange. Machine cut flat to 0.480, our adapters seals in exhaust drive pressure.