EXHAUST PRE-SILENCER, 84-85 12A MANUAL TRANSMISSION
Racing Beat Exhaust Pre-Silencer, 84-85 12A Manual Transmission
| SKU: | 16401 |
EXHAUST PRE-SILENCER, 84-85 12A MANUAL TRANSMISSION
The Racing Beat Power Pulse Presilencer for the 1984-85 RX-7 12A engine (w/manual transmission) is designed to be used with our wide selection of RX-7 Streetable Headers to complete a bolt-on configuration. When used along with a Racing Beat header, this presilencer will connect the header to the connecting pipe section, offering a true bolt-on configuration. These Power Pulse Presilencers are also ideal for those individuals wanting to fabricate custom exhaust systems incorporating either long or short primary exhaust systems.
The Power Pulse Presilencer improves the character of the exhaust noise, dramatically reducing the inherent, obnoxious metallic high frequency noise with virtually no power loss. Constructed with a high temperature, 2-inch I.D. perforated core of 304 stainless steel wrapped with high-temperature stainless steel wool, the Power Pulse Presilencer measures 20 inches in length with a 4-inch outside diameter. The mounting hanger (if provided) has been designed to mount this presilencer to the specific application listed above. The mounting studs are 10mm both front and rear.
$291.06
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EXHAUST HEADER 12A, 84-85 RX7 (MANUAL TRANSMISSION)
Racing Beat 12A Exhaust Header, 84-85 RX7 with Manual Transmission
Actual header not shown in photo – oxygen sensor fitting only included on 1984-85 RX-7 GSL-SE header.
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.
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EXHAUST SYSTEM SINGLE, 84-85 12A MANUAL
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Exhaust Down Pipe 86-92 Non-Turbo Coupes 2 1/2″
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This Down Pipe is available for custom applications in a 1986-91 RX-7 (excluding convertible) non-turbo application. This 2.5-inch down pipe fits either manual or automatic transmission equipped cars and eliminates the catalytic converter sections.
This down pipe bolts to the stock exhaust manifold, but the use of our presilencer (or a suitable replacement) is required to connect this assembly to the Y-pipe section. If you need to retain a catalytic converter in your exhaust system, you may find a suitable unit offered in the aftermarket. Although the replacement of your stock catalytic converters with a single aftermarket unit is technically NOT legal, this approach may suit your emissions needs. We suggest you contact your local emissions testing facility for more information. Gaskets sold separately.
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MUFFLER UNIVERSAL, POWER PULSE 79-85 RACING BEAT
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In response to numerous requests from customers demanding a very low restriction“street capable” muffler, Racing Beat now offers the Universal Power Pulse PR-Extreme RX-7 Muffler with a 2.75″ OD internal perforated core design to meet the performance demands of high-horsepower ported rotary engines. The Power Pulse PR-Extreme RX-7 Muffler is compatible with all 1979-85 RX-7 muffler rear mounting positions and retains the factory stock appearance; this PR-Extreme RX-7 Muffler includes an inlet of 3″.
The Racing Beat Universal Power Pulse PR-Extreme RX-7 Muffler is manufactured by the same exhaust components manufacturer that has produced the “tried and proven” First Generation RX-7 Power Pulse mufflers (1979-80, 1981-82, and 1984-85) since the mid-1980s. Utilizing a heavy-walled canister shell and extremely durable heat and noise insulating materials, the Racing Beat Power Pulse PR-Extreme RX-7 Muffler is engineered for the high exhaust gas temperatures found in rotary engine applications.
The main body of the muffler canister measures 8 inches in diameter and 18 inches in length. The dual outlet tips are completely chrome-plated with straight-cut outlet.
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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.
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