The CHRYSLER 300C 6.4L SRT-8 (2012-2018) is compatible with the 3" Stainless Steel Cat-Back System XForce, which features a Twin 3" cat back system, a Centre x pipe, Twin hot dog resonators, and 304 stainless steel construction. Please note that this system is not suitable for vehicles equipped with a towbar, and for factory Bimodal vehicles, it is necessary to keep the factory valves connected to prevent activation of the CEl. The Part No. is ES-301C-CBS and the Vehicle Model is 300C. The diameter is 3 inches, and the material is stainless steel. Keep in mind that the actual exhaust system may differ from the image shown, and shipping times may vary depending on size, destination, and availability.