Exhaust

Racing Beat 13B Exhaust Header, 74-78 No Flange. Will not work on the Pick Up

This rotary exhaust Header/Collector (less outlet flange) is ideal for RX-2, RX-3, RX-4, and COSMO (does not fit rotary pickup) custom exhaust installations. The flame-cut, .5-inch thick engine flange provides positive sealing and alignment. By integrating the collector with the header we reduce the effort and cost in completing the exhaust system. Engine-to-pipe gaskets are not included but are available separately. An Air Control and Check Valve Cover Plate is required when using this header with a stock intake system. 

If the stock resonator is eliminated during installation of this unit, we strongly recommend selecting a Power Pulse Presilencer and installing it in place of the resonator to maintain a pleasant noise level and character.

Racing Beat 13B Exhaust Header, 84-85 RX7 GSLSE 6-port, 81-85 4 PORT CONVERSION

This RX-7 Header is designed for a bolt-on installation, when used with the appropriate Power Pulse Presilencer in all 1981-85 RX-7 with 13B conversion or the 1984-85 RX-7 GSL-SE models. The combination of this RX-7 header and the appropriate presilencer replaces the stock exhaust manifold and all catalytic converters for use in racing applications, along with any intermediate pieces of tubing. This header includes a mounting flange for the oxygen sensor.

The Racing Beat RX-7 header assembly is constructed with .120-inch wall, mandrel-bend, mild steel tubing for increased durability and sound suppression. Both flanges are laser-cut from .5-inch thick steel plate for positive gas sealing. An outlet gasket is included. An engine-to-header gasket is available separately if needed.