KenB...I have the Comp 2 touring and complete stage 1 setup on my 1250. I love it, and it isn't too loud...in fact all my riding buddies comment about the great sound. My wife rides with me and has never said anything but good things about the sound. The increase in throttle response and power is worth every penny.
I also have the fork brace...definite improvement there. The mirror extensions are good but quite honestly are still not enough in my opinion...much better than stock though. Also have the ATRE...I just like knowing what gear I'm in, I didn't really notice anything power wise.
Cruizer...