Quote:
Originally Posted by F90_M5
I'm no engineer but what I heard is that besides the signature design which I love, it actually has functionality. If I remember correctly, it has something to do with reducing back flow of air to make the air flow better and also has positive impact to the sound a little bit.
Imagine turning a bottle full of water upside down to let water go but with a chopstick sticking out.
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That is correct, their tips are designed to have some sort of function by diverting the exhaust pressure. Theoretical with the tips but does add an interesting look