Andymot your insightful write up confirms my own experiences. All the points you describe I have done also even if with other parts in detail concerning the manifold and exhaust system as well as the mapping of the ECU but the resilt seems comparable in terms of performance.
Regarding another zone of tuning namely the intake section, after an extended trip last week and short before driving home today I would like to add that I may go one step back regarding the open air filter. It is a good feel on short distance blasts to have an open one with even more high rev willingness but concerning a 2.500 km vacation I will go back to the standard airbox, safe my nerves a bit and sacrifice some high rev HP. Low and middle torque is not worse in my experience using the standard airbox.
