This item doesn't sell to California & Colorado & New York, please confirm before purchase. FITMEMT: Universal fit for vehicles with 2.25-inch outer diameter exhaust pipe. Note: Professional installation would be highly recommended. HIGH EFFICIENCY: Interconverter type:Universal fit, body material:Stainless Steel, substrate material:Ceramic, cell count:400 cell, body shape:Round, inlet, outlet dimension:2.25" inside diameter, overall length:13", engine limit:2.0L, restricted states:California, new york, colorado, maine, warranty:5 years or 50,000 miles limited