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Originally Posted by xoxoxoBruce
Explain how interfering impulses which create more backpressure and slow the exhaust, will make it louder. And don't tell me it's because Bush lied.  |
Periods of minimal exhaust flow followed by a sudden blast out as the exhaust gases of two cylinders exit at the same time. Listen to a vehicle with "tuned headers" - a 1950s technology among car enthusiasts. Tuning results in a sort of smooth buzz. Smooth, even, and quieter. Then listen to an engine without same. It sounds like one loud cylinder among the many farts loudly. Increased noise.