I bet you are more than confused round about now.
Well, lots of different experiance from different folks. The bike you have is commonly called the MY 2010 F4 1000 - some call it the F4 1000R, but technically the R only came along later with the short stroke motor. Either way, there has been various issue's with the MY10 bikes, with fueling been the main culprit. And there is no chip to swa[ out on either one.
If it was mine, I would get rid of the exhaust, new headers and a de-cat mid pipe to get rid of the Cat and the powervalve at, least disconnect the powervalve and you will see the flatspot dissapear.
As for the tailpipes, I would hold off on the Bodis as they are busy sorting issue's with the pipes melting the paint on the tailfairings on the Y10+ bikes.
For pure looks, and if I had the money, I would stick a set of Moto Corse Ti tailpipes on the back, best looking pipes around, as per picture by forum member.
Then you will need a Race ECU, and a Powercommander and someone with a Dyno to set it all up for you, or, if you had the money, and if it was my bike, install a Microtec ECU.
Next would be a pair of adjustable rearset's and that should have you smiling, and your bank manager in the hospital.
Hope that helps a bit. Sometimes you need to just ride it a bit more, and a bit harder