Dean life has been hectic for a while now so I never got to reply to your e-mail. The set of Jardines I took off Gracie (a 2005 bike) will not fit the roadster version because of the ABS they are in good shape I will buff them out along with the Predator and send you some pictures. I do find the Jardines are louder at lower rpms but that could be because you have two pipes one on each ear. My buddy always said he lived the sound they put off. Of course at high Rpms he said the predator was louder but I never run the Jardines on a bike that will pull 9000 rpms so I cannot compare.
Personally I like both sets of pipes but at the same time I must say I like the Capenter Megaphone better even though it needs shields especially if you do not own a roadster. Having shields made will add to the price of the pipe but if your wanting performance IMO it by far out produces the Jardines and Predator pipes. You should make up your mind how far you want to go before you spend the money on a set of pipes. If your staying with stock compression, cams, and head work then all three will be good depending on what look you want. If your going to add more internals to increase the HP then you might as well go with the better pipe. Big in Big Out