GREDDY STAINLESS TURBO EX MANIFOLD FOR MAZDA RX-7 FD3S 10541001Brand GREDDY Product Number 10541001 Compatible Car MAZDA RX 7 FD3S Product Description Compatible Engine:. 13B REW A stainless steel exhaust manifold that adopts a layout that is nearly equal length as far as the space of the engine room allows, and leads the exhaust gas to the turbocharger efficiently The main pipe diameter and the waist gate line diameter are designed to efficiently work the conforming turbine fit turbine:. TD07S T78 T88 60 main