Recently, I spent some time with a BMW M340i. I wanted to put it through my normal exhaust test.
In the video, I give you a start up/idle in the normal mode it starts up in, then provide you a mid range rev then a redline rev. The M340i also features a Sport and Sport Plus mode. I throw it in Sport Plus mode which turns the engine/transmission up a bit to allow for more pops and bangs out the back for both a mid range rev and a redline rev as well.
The change from Normal to Sport Plus is noticeable. The thing is pretty darn loud for something not quite a full on ///M car. Check out my video above for the sound and the numbers.
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