My name is Fletch and I just bought a 2013 Softail Slim. I love it and want to do some customizing and upgrading to it. Im a new rider and don't know exactly what all you have to do when upgrading your bike. I would like to put a new louder exhaust but with that being said do I need to tune the engine to it? I am just looking for some tips and advice on how to make my Harley more powerful and have better performance the right way without the dealership feeding me a bunch of crap. Thanks everyone.