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surprised by performance exhaust
I just installed the BMW performance exhaust less than a week ago and was both pleasantly and unpleasantly surprised.
First the good: There is a lot of burbling and popping on deceleration, much more than I expected from a factory exhaust. This is music to my ears! Also, the exhaust sounds glorious at high rpms and I no longer have to turn down the fan to hear the engine.
Now for the bad. The exhaust is quite loud and drony under even gentle acceleration at anywhere from 2000 to 3000rpm. I was not expecting this at all based on reviews of the exhaust I've read. It sounds like I'm giving it all I've got when I take off from a light stuck behind a slow moving truck.
I've put about 150mi on it and it has improved slightly. It was absolutely deafening at some points during normal driving the first day I had it on.
This drone does not sound like other users descriptions of the exhaust. Does the low rpm mellow out as it breaks in further? Any suggestions??
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