Made from 304 stainless steel for maximum corrosion resistance. Hi-flow metal matrix 200 cell catalytic converter with 9 gm/cubic ft load. 10-3/4" overall length with 4" Body dia., 3" ID inlet and 3" OD outlet. These are the highest flowing, most durable cats on the market. These comes with a 2-year limited lifetime warranty.
All warranty questions, claims or otherwise should be directed toward the manufacturer, Dart.