Ill be picking my s1000 up next week it says it has a full akra system is there anyway of knowing with the headers be different to standard just a bit dubious whether its just a slip on and they are trying it on
If they are TI then they will be blue tinged from heat. If not then you're best off looking for the pressure balancing pipe. Stock pipes 2 and 3 are linked near the engine flanges by a small pipe. If you have that they are stock IMO.
However, TBH if it's decatted then there's not much difference. It's a point to use but not one to really get wound up over.