Quote:
Originally Posted by Levi
Comparing stock exhaust with aftermarket exhaust?
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Yes, I compare, because F80 M3 has not released yet, or there dont have sound check on indoor conditions, but you see the point. If manufacturer want made car sound like beast on stock it is possible also when using (N55) I6 layout, just think that S55 revs almost thousand revs higher, its huge jump when compare engine sounds.