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Originally Posted by RoshDawg Just curious about what causes different type of exhaust notes. For example, rumble sounding exhausts are normally caused by unequal length headers (ex STi), but what
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1. Deep/low pitched exhaust Generally larger diameter tubing 2. High pitch (not necessarily exclusive to rpm's above 8/9k) Generally small diameter tubing. A system design that has sudden expansions or sudden contractions. Chambered mufflers. 3. Rumble sound even with equal length headers (ex. GT40, SLS) The "off beat" sound can be the total system design. 4. Exhaust crackle when you let off the gas Engine tune and exhaust cam phase. And it helps to have a high flow exhaust. |
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I'm going to check out the Meistershaft now. Quote:
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