Check the listing for details. DYNATECH Catted X-Pipe 09-13 Corvette, 715-63540. Condition: New other (see details). Listed at 599.95 USD. High-flow, merge-style Dynatech SuperMAXX intermediate pipes provide maximum exhaust flow, while their slip-together union allows for an easy installation without welding. They feature a collector/converter connection that uses a self-aligning, sintered-metal donut gasket for a long-lasting, leak-free connection. Dynatech SuperMAXX intermediate pipes are available with or without high-flow, stainless steel catalytic converters for increased horsepower and torque. They have provisions for O2 sensors and are fully OBD-II compatible. Outside Diameter (in):2.500 in.Tubing Material:Stainless steelTubing Finish:NaturalCatalytic Converter Included:YesGaskets Included:YesHardware Included:YesMandrel-Bent:YesQuantity:Sold as a kit.Notes:Designed ONLY for use with Dynatech SuperMAXX headers.