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When I installed my MPPK Tune on my 2014 335i, I was disappointed at first, it started running stronger each time I drove, took two full tanks of gas for full adjustment of computer. The drone could be if you are driving in sport mode, the exhaust bypasses the muffler and you may have drone, put into comfort mode on the highway for valves to close and go back through muffler.
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2022 Porsche 911 Cabriolet Agate Grey/Black PDK
2019 440i M-Sport Smoke Topaz Metallic/Opel (Sold)
2014 335i M-Sport Black/Beige MPPK/MPE (Totaled)
2013 328i Sport xDrive Imperial Blue/Grey (Sold) |