Congratulations, it is obvious you finally understand the technical breakthrough that Aero has patented. Testing has shown that Aero mufflers not only reduce backpressure, ALL aftermarket mufflers do that. Aero is the only muffler in history to actually improve over a totally open pipe, no muffler at all. No other muffler ever came close to that. You are quite correct, thank you. Aero has moved the science of mufflers ahead a quantum amount. And gotten patents protecting that ability.
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