Quote:
Originally Posted by William Blake
I think the stock airbox is already pretty much perfect..
How does the Gruppe M sound like?
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hi mate... the GRUPPE M sound wicked.
i know its a pretty bold statement but during the mid range pull all the way to top end, the intake brings your M3 to life. Love the prominent sound of the hard hissing / air suction when the intake pulls.
Yea i do agree the stock box is pretty good and could be improved with a drop in air box but i decided to spoil myself as a birthday treat. hehe