i've only been able to find a few full systems out there, who makes full exhaust systems for the F3 and does anybody have any advice on what's best?

 

I have the full D&D pipes and they are not the loudest I've heard. I don't know about performance but they are obviously smoother through the collector area and sound great.

 

Yoshimura all the way. You can find a whole lot of the older exshaust systems that are tuned perfectly for that bikes engine. Try ebay, aslo search partzmart in ebay great vendor for perfect cbr parts stripped from perfect clear title bikes.

 

I have a full D&D system as well, all polished. Looks nice although I wish it were a high mount and it is pretty loud. Not sure on the price since it was on the bike when I got it but I've had D&D on other bikes and they're usually a pretty good deal.