Hello everyone, once again a question that has certainly been chewed through thousands of times…. Have a 2008 deluxe with manually adjustable KessTech-Tröten. Have the impression that the good piece with closed end pots is better than with open, only the sound is then of course quite good…. So the question, what does a better airflow at the air filter use, other (and if yes, what) software tuning. So quite stupidly asked: How do I get more wumms from the good piece and from when does it become mandatory???