This Streetable Header/Collector is designed for a bolt-on installation, when used with the appropriate Power Pulse Presilencer in all 1984-85 RX-7 (12A - Automatic Transmission) models. The combination of this Header/Collector and the appropriate presilencer replaces the stock exhaust manifold and all catalytic converters, along with any intermediate pieces of tubing.

The Header/Collector assembly is constructed with .120-inch wall, mandrel-bend, mild steel tubing for increased durability. Both flanges are flame-cut from .4375-inch thick steel plate for positive gas sealing. An outlet gasket is included. An engine-to-header gasket is available separately if needed.