The BD-Power T4-T3 Adapter Flange 1044106 provides an inexpensive alternative to replacing your exhaust manifold. With T4 sized turbine housings, there is no performance advantage to changing the exhaust manifold to match. So, why go through the expense? The BD-Power T4-T3 Manifold Flange allows you to adapt a T4 Turbocharger to your T3 manifold.
T4 Turbo – T3 Manifold Adapter