EXHAUST PRE-SILENCER, 84-85 13B 6-PORT
Racing Beat Exhaust Pre-Silencer, 84-85 13B 6-Port
| SKU: | 16402 |
EXHAUST PRE-SILENCER, 84-85 13B 6-PORT
The Racing Beat Power Pulse Presilencer for the 1984-85 RX-7 GSL-SE (13B 6-Port engine 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. This presilencer unit is equipped with an exhaust gas back-pressure pickup tube to allow for the correct operation of the 6-Port intake actuator valves.
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.
$301.98
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EXHAUST HANGER, 2 SLEEVES
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Go To Our FAQ for Exhaust Hangers to see the locations and part numbers of the hangers for your car.
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EXHAUST SYSTEM SINGLE, 84-85 13B SE
Racing Beat Single Exhuast System, 84-85 13B SE
Racing Beat offers a complete RX-7 high-performance exhaust system for the 1984-85 13B (GSL-SE) RX-7. This system includes our Road Race Header, a Power-Pulse Presilencer, and our legendary Power Pulse main muffler. The Power Pulse Presilencer unit is equipped with an exhaust backpressure pickup tube that allows the correct operation of the 6-Port intake actuators. Be careful, if you are considering a replacement exhaust system that does not have this important feature, your intake system will not perform correctly and a noticeable decrease in high RPM performance will occur.
These components attach to all stock mounting points, and include all necessary gaskets and hardware. The only component not included is the factory connecting pipe that mounts just ahead of the main muffler. There is no horsepower to be gained by replacing this pipe with a larger diameter assembly. If your factory connecting pipe needs replacing, we suggest you contact your local muffler shop.
These exhaust systems offer excellent horsepower gains when you require a muffled exhaust system for your stock-ported engine. The actual horsepower increase depends on which year/model stock RX-7 exhaust system you are comparing to, but a 22% increase at 7000 rpm is typical. Thanks to the combined efforts of the Power-Pulse Presilencer and the Power Pulse Main muffler, the exhaust noise is only slightly higher than stock, with a very low, pleasant character.
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EXHAUST CONVERTER GASKET, 81-85 MONO + 84-85(REAR)
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EXHAUST CENTER SECTION, 84-85 13B WITH 6 PORT TUBE
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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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Exhaust Down Pipe 86-92 Non-Turbo Coupes 2 1/2″
Exhaust Down Pipe 86-92 Non-Turbo Coupes 2 1/2″
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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