Moin – did anyone of you experience the “optimization” of serial exhaust systems?? Have a 883R with original 2-1 system – I just bought an original end pot and would like to work on it – how is that – when I push through the impact plate – the box runs better or worse – and how does that sound – how broken or dull? or can you remove the impact plate completely? and how is it best to do it? or should I leave it all better??