As mentioned in the other thread, the PCIII will not fix the stink.
That's entirely due to physics of where the exhaust exit is located high and behind the rider. The vortex of air that the rider, and even worse, the passenger, create is the problem. It sucks all the exhaust air up and back towards your passenger, your backpack, you, etc.
Move the exhaust down to a 900rr setup like several have done on here and that eliminates your problem.
Get the PCIII to get a proper dyno tune on your bike and/or smooth out the throttle. That's about all it is for.
2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)