15in Long. Overall Length: 19in. Muffler Sound: Deep Tone. Vibrant Performance Stainless Steel Universal Performance Mufflers are made from T304 Stainless Steel. �True Straight Through� internals feature a Stainless Steel Perforated Tube that is wrapped in premium quality, multi-layer sound suppression material that will produce a low, deep tone while allowing for unrestricted flow and maximum horsepower. These Mufflers are not flow directional, allowing the installer the flexibility needed for custom exhaust fabrication.