K-Tuned Universal Oval Mufflers are constructed entirely of 100% T304 stainless steel, including all the internal parts. Back purge tig welding is used to keep the welds super clean, ensure proper penetration and weld strength. Design is straight through with a perforated tube, to minimize flow restriction and maximize power output. Packing or sound deadening material is one of the most important features of any muffler. While other muffler manufacturers often use lower grade packing that burns up in a short time, we selected a high quality, multi-layer, premium packing that is made to last. This will ensure that the sound you hear on day one will last for years, and not just a few months. The sound is the same low and deep tone you hear from our popular cat back systems.  Detailed Specs Choice of brushed stainless steel finish or wrinkle black powder coat over stainless steel finish  Choice of long (22") or short (19") offset sized mufflersLong for coupe/sedans ;  shorter for hatchback vehicles Choice of 2.5" or 3" inner diameter piping Stainless steel has 4" double wall tip w/laser etched K-tuned logoWrinkle black has 3.5" single wall tip w/stamped K-tuned logo Long offset muffler is 22" overall, 14" body, 7" tip, 16lbs Short offset muffler is 19" overall, 12" body, 6" tip, 15lbs