Features advanced acoustical tuning technologies for deep rumbling sounds.
4" round muffler front expands to 4.5" diameter near the rear.
Comes with a 3" core encased in proprietary Cobra sound-tuning materials with specific acoustical dampening and thermal insulation properties; deep base notes are made possible because of class-leading resonance absorption and prevention.
All necessary mounting hardware and instructions included, ensuring problem-free installation.