After many miles of watching the wideband on my dash instead of the road ahead and having lived to tell the story, I would like to share my findings with our petrolhead community. We have had long discussions in the ITG thread and various people have contributed with their findings to this consolidation of understanding. All experiments have been done using the stock 950 engine, stock exhaust downtubes, akras with all possible insert combinations or lack therefoff and the stock reactors we loath. As far as the intake goes, I have used the stock configuration and DNA filter included, the H2W setup and the ITG free flow exravaganza of a filter, but the wideband data have been drown almost exclusively from the latter. However, as you will see later on, the method as well as most of tunning variables, apply for all these configuations, bar the H2W setup which due to the added restriction and consequently the smaller main jets, gets away with some fundamental differences and is explained briefly later on. The good news is that it all is very easy, cheap and results to an engine perfrormanse which not only is flawless throughout in throttle response, but also provides the best possible mpg and elevation flexibility whatever the (twin) exhausts and intake setup is (bar the pre-filtered on which there is nothing to add beyond the current state of affairs). There are other setups which can give better this or better that, but are bound to make fueling overall more problematic. There are no bad news. So, this guide applies to stock bikes and/or bikes with a more open intake than stock. This text is structured as follows: First, the basic tuning procedure is laid out, followed by advise for fault finding and fine tuning. Then the different twin exhaust setups are compared and finally you will find a practical explanation of the therory behind the why's and the how's. What is missing, is possible differences in settings with the carburated 990 engines (known as KTM 970) and the various 2-1 systems of which I have no experience. However, current data coming from the ITG thread from across the vendors area, indicate that there is practically very little difference in terms of tuning for 2-1 exhausts, so most likely, this guide is applicable to these too.