Like all of Two Brothers Racing products, these Shorty Slip-On exhaust system was developed to surpass what is offered on the market today. Engineered to compliment the quality and performance of Harley Davidson's products, this handcrafted system delivers unparalleled sound and performance for the ultimate race experience. A unique and exciting design, made to fit both Dyna and Sportster models with one part number and package. High-grade aluminum end caps. Spiral wound perforated core for unparalleled sound. Drop weight; roughly 10 lbs lighter than stock. TIG welded by hand. Handcrafted in the USA. Spiral-wound perforated core for unparalleled sound High grade aluminum end cap +/- 10 lbs. lighter than stock