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Corsa Exhaust | Corsa Exhaust Systems 11All that remains is the clean, crisp sound of performance. (The actual frequency/frequencies and amplitude where drone occurs will vary from vehicle to vehicle, but the overall principles are the same as our example here.) The next thing to look at on the graph is the green graphic line [B] which illustrates the effective attenuation and amplitude range of another type of muffler design referred to as the tank volume or chamber design. As you can see, 'tank' style mufflers often cover some of the frequency range where drone can occur, but they usually fall short of being able to handle the amplitude (power level) of the frequency or sound wave at its peak, so drone still occurs. Lastly, the purple line [C] depicts the effective attenuation range of CORSA's patented RSC™ technology. Although narrower in frequency coverage than a tank volume type muffler, the capability of the RSC™ design to handle high amplitude, low frequency sound waves is unmatched. The higher maximum 'peak amplitude' coverage of the targeted RSC™ muffler, allows complete attenuation of the highest amplitude, drone producing, frequency shown on the graph (the peak frequency amplitude is covered by the attenuation curve), so the drone is eliminated. Since the RSC™ technology is more focused in target, we also don't interfere or distort the rest of the sound profile, so the remaining frequencies remain crisp and clear; that's part of what delivers CORSA's distinctive performance sound. What's better, is that CORSA often utilizes a combination of different exhaust technologies/designs in one exhaust system to produce the optimum combination of low, mid and high frequency control so we can deliver just the right sound. And our high flow, non-restrictive design delivers the optimum in performance gain too. UNLIKE OUR COMPETITORS, WE DELIVER: NO DRONE/RESONANCE Due to patented RSC™ noise cancellation technology, your interior is whisper quiet at highway speeds. GREAT PERFORMANCE SOUND We tune in good sounds to cancel out the bad sounds without the use of baffles or interior steel wool packing materials. INCREASED HORSEPOWER & TORQUE Due to straight-through design, the result is increased flow and less back pressure. INCREASED FUEL ECONOMY
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