About 20 bucks. I still have two Sportster mufflers I bought by accident. I really wanted the ease of the Dyna install (mounting with a bolt and no hammer...
I have the tank and the carb off right now. I am going to pull the idle mix screw plug, put some washers in place of the full size one, and get to tuning it. Just gotta get a magnetic screwdriver, I don't wanna screw around with trying to get those screws back in, pun intended!