Originally Posted by 1bmw1
Well, considering that they are two completely different motors, they will sound different from one another. One being an M50B20, and the other being an M52B28;That being said, the intake should sound differently if you remove the airbox, regardless of engine size since the airbox muffles the sound of the air intake. It doesn't make sense to me for the carbonio intake would sound the same as a stock airbox.
Well actually my car has the M50TUB20 with vanos, and yeah we still haven't figured out what could be preventing the Carbonio intake from working properly on my brother's car, like I said we did follow the instruction manual the second time around, when installing.