Trust me, i was in the same boat as you when I put my dual 40's on. Thought they were too quiet. Go have someone else drive your truck off and you stay behind and listen. It will change your thoughts on the sound. To me, I like it that way. I mounted mine as far back as possible to avoid cabin drone and noise. Mine are loud enough to set car alarms off.

 

just straight pipe it. i think thats the loudest way to go