Tomei has been wasting no time creating an unequal length exhaust manifold for the FA-20 that will improve the performance and sound. Through extensive testing, research and development of the EJ series motors, Tomei has found a great formula and produced two great performance manifolds for the FA-20 motor. The greatest feature particularly with the unequal header, is that it gets rid of the torque dip in the upper RPM’s. and really gives the car that characteristic boxer noise. Included in this Tomei manifold are a little bit of heat shielding, and all the provided hardware and gaskets required for a ready installation.