79-85 12A Rx7

Racing Beat's Road Race Header is the first step in building a serious racing exhaust system. The engine-to-pipe flange is laser cut from 7/16" thick flat steel. Like all of the headers we manufacture, the Road Racing Header is constructed with 2" OD mild steel tubing, .125" wall thickness, and mandrel-bent tubing throughout.

Outlet flange gaskets, bolts, and nuts are included. An engine-to-header gasket is not included, but is available separately. An Air Control and Check Valve Cover Plate (1979-80 or 1981-92) is required when using this header with a stock intake system. The Road Race Header can also be used as the basis for a custom streetable exhaust system in any car from 1971-92 which allows simple swapping between street and race exhaust systems.

These headers can used as a bolt-on component with the Street Port Center Section Pipe (1979-85 12A & 13B - except GSL-SE) or (1984-85 GSL-SE) that we offer for these model years.

The Racing Beat Streetable RX-7 Header with Heat Exchanger Flange Outlet is intended only for use on the 1979-1980 RX-7. It is available in both 12A and 13B versions to accommodate those who install the 13B engine in the 12A equipped RX-7 chassis.

While replacing the stock Heat Exchanger does not offer any significant horsepower increase, we recommend replacing the Heat Exchanger with our Mini Power Pulse Presilencer to reduce exhaust noise. Engine-to-pipe and heat exchanger gaskets are not included, but are available separately or as part of a complete exhaust system.

This Streetable Header/Collector is designed for a bolt-on installation, when used with the appropriate Power Pulse Presilencer in all 1981-83 RX-7s. 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 .125-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.

The Racing Beat RX-7 Header is designed for a bolt-on installation, when used with the appropriate Power Pulse Presilencer in all 1984-85 RX-7s (12A - Manual Transmission). The combination of this RX-7 exhaust 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 RX-7 header assembly is constructed with .120-inch wall, mandrel-bend, mild steel tubing for increased durability. The engine-to-header flange is laser-cut from .5-inch thick steel plate to ensure positive gas sealing. An outlet gasket is included. An engine-to-header gasket is available separately if needed.

Actual header not shown in photo - oxygen sensor fitting only included on 1984-85 RX-7 GSL-SE header.

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.