These manifolds are cast from high quality molds for proper fit and appearance. Includes exhaust flange bolts, nuts and washers. Note for 1964 - 1967 owners: Those wishing to improve performance on their 1964 - 1967 Mustangs can run this exhaust manifold which has a larger port and more free flowing design. This in conjunction with a larger diameter exhaust pipe and muffler will give you better acceleration, more power and improved fuel efficiency. However we highly recommend a Clifford 6 cylinder header. |