I installed the BT version into a friend’s S1 4.2 with astounding results. At one stage, the engine was TOO responsive / racy! The smallest touch of the accelerator would have the revs jump aggressively! I found myself actually having to detune the engine, knowing the owner would not like it so “nervous”.
123 did have Android issues at the time but they were very responsive to my input in fixing it.
MAP and centrifugal advance curves I used, attached.
