Supersprint tip designs to enhance the performance appearance of your vehicle. Not only are Supersprint tips stylish, they are an example of the quality that is built into the entire system. Tips are chrome plated stainless steel with rolled ends. Supersprint tips are also resonated, meaning they have an interior perforated tube for additional sound quality and control. An added benefit of this design is additional cooling of the tips which promotes longevity and safety. These tips only work with factory muffler.