My buddy has the big radius, which to me, seem are louder than my short shots, maybe because of it pointing at the ground or something. Taking the baffles out of the short shots make them loud.
Depends if you want loud and deep or a higher pitched loud. The longer the pipes the deeper the sound will be. I have the Rhinehart crossbacks and they are really loud but still have a nice deep tone that sounds good.
I've got the short shots on my 09 and they're pretty loud. I wouldn't run mine without baffles because I'm a chicken **** who'd be too scared he'd burn out his exhaust valves. Queue 17.5 wrenches to tell me I'm wrong. I still wouldn't do it. What I would do is run them with the big city thunder monster baffles. Deapens the note, makes it a tiny bit louder, gives you a little more torque. Nice, nice and nice.