JUN AUTO Exhaust Manifold For MITSUBISHI 4B11 5001A-M002Brand JUN AUTO Product Number 5001A M002 Compatible Car MITSUBISHI Compatible Models 4B11 Product Description This is an Exhaust Manifold compatible with factory one made by stainless. We devised pipe shape and a diameter not to disturb a flow of exhaust emission and reviewed balance between exhaust flow quantity and exhaust pressure. As a result, start of a turbo in the whole rev became smooth. Especially, for the Subaru Impreza, it is possible to