The exhaust is the perfect amount of “sound” for me. Much much better than factory exhaust and i don't scare the horses when i leave the barn. FYI- it is GM part #19419433
On the CAI, i also have done a-lot if research and you're right: the brands, options, styles, etc. are overwhelming. In all this research and talking to several “gearheads”, o have decided to leave it stock and just go with a better air filter. Im not tuning the engine or altering anything else- so in my opinion, the CAI wont add that much. Again, just my opinion- as i know there are arguments for and against CAI’s that can rival political arguments.