Anytime you can free up the stock exhaust on your late-model Harley it is going to be a good thing. Not only does your scooter go from sounding like a sewing machine to a real-deal Harley-Davidson, but it is one of the first steps in gaining more horsepower. We teamed up with Vance & Hines on our project 2016 Softail Slim to get it breathing and looking better. We used a set of Vance & Hines Softail Duals pipes for that classic two-pipe look. We are also employing a Vance & Hines FP3 tuner to make sure the air/fuel ratio is correctly adjusted after the exhaust upgrade. Although this tech could easily be handled at home with a few hand tools, we decided to let our pal Scotty Speed Metal do all the work. Here’s how it went.