Do all Akrapovic slip on silencers fit all 1290 SDR and GT models / years. I know the full Evo system is different but I'm getting confused with all these part numbers.

My bike is a 1290 SDR 2016, will they all fit, or only certain part number/s.

61405979000 silver

61305979000 silver

61305979100 silver

6140597900033 black

Then there are these codes

F9903O2 1290 Super Duke R 2015 2015 EU
F9903N9 1290 Super Duke R 2014 2014 EU
F9903N2 1290 Super Duke R 2014 2014 EU
F9903O9 1290 Super Duke R 2015 2015 EU

F9903Q2 1290 Super Duke R 2017 2017 EU
F9903QH 1290 Super Duke GT 2017 2017 EU
F9903PF 1290 Super Duke GT 2016 2016 EU
F9903Q9 1290 Super Duke R 2017 2017 EU
F9903QL 1290 Super Duke R 2017 2017 EU
F9903P3 1290 Super Duke GT 2016 2016 EU
F9903QF 1290 Super Duke GT 2017 2017 EU
F9903QE 1290 Super Duke GT 2017 2017 EU

OK, basically I see some on ebay, some ads say they are for GT / SE or only fit certain model years.

I was under the impression they are all the same size.

Can any one confirm this please.