T3 to T4 Exhaust Manifold Adapter

BD Diesel exhaust manifold turbo adapters are an inexpensive alternative to replacing the manifold. These adapters allow for quicker changes back and forth between different turbo mounts without changing the manifold. For quick changes of your turbo head units BD Diesel has you covered. Most common use of this is to adapt T4 flange S300 turbos to the factory 6.5L exhaust manifold that has a smaller T3 flange.