Muffler Nh 4.5" Flh BlackGen 2 Neighbor Haters Series MufflersThe core design produces good power on the stock head pipes, but should be able to create even more when the rider decides to build more power with either a larger engine or standard industry hop up parts Provides enhanced sound and improved tunability for performance gains 50 State legal (declared manufacture replacement part) Made in the U. S. A. Machined aluminum tips with contrasting dual grooves. 4 1 2"