I just bought an 04 Deuce and I am trying to decide on pipes. How many people run them with the baffles and how do they sound? How do they perform without baffles?

 

I have them with the quiet baffles --like the sound much--had them with no baffles--neighbors were a little (lot) upset.
Low end torque is best with baffles in.

 

I could care less about my neighbors I have jug huggers on my Warrior with no baffles and make 87HP and 107TQ. How much loss in bottom end without baffles?

 

Can't say how much low end you'll lose but you will definitely notice it.
i think the BSS are a good choice and are pretty loud with the
standard baffles.

 

Good choice and good noise with standard baffles...

exactly same bike btw. you can see the pipes if you click on my pic (the camera on the left).