Quote:
Originally Posted by Ashikabi
It's probably the high velocity causing the higher pitch
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That's possible although I thought internal muffler design had the most to do with it. just read this article
http://www.gomog.com/allmorgan/exhaustbackpressure.html
Down-turned tips, particularly those that force the exhaust underneath the car, can deepen the exhaust note by bouncing sound off the ground and using the undercarriage as a resonator. The ground will absorb much of the annoying high-frequency sound from smaller displacement or more restricted engines.
So the legamax tips are slightly pointed up which doesn't help