Vehicle Fitment: Compatible with Dodge 1996 1997 Ram 1500 Extended/Standard Cab Pickup 5.9L, 1996-1999 Ram 1500 3.9L/5.2L, 1998 1999 Ram 1500 5.9L, 1996 Ram 2500 Cab & Chassis 5.2L, 1996 1997 Ram 2500 Cab & Chassis 5.9L, 1996 Ram 2500 Extended/Standard Cab Pickup 5.2L/5.9L, 1998 1999 Ram 2500 5.9L, 1998 1999 Ram 3500 5.9L Reference Number: 50505, 51274, 645937, 20303 Excellent Material : The stainless steel body of high-quality aluminized pipes is not easy to rust, ensuring excellent oxygen storage capacity and long service life. The double-layer high temperature resistant ceramic carrier greatly increases the flow rate and surface area, thereby improving power and fuel economy Direct installation : The kit comes with necessary gaskets and hardware for replacement.so as to help you with hassle-free installation, no need to modify any part ATTENTION : The products have been certified by EPA. EPA compliant catalytic converters cannot be sold or installed in California and Colorado and, under certain circumstances, in Maine and New York. Check your vehicle's Emission Control Information Label and your state's aftermarket converter regulations to select the proper catalytic converter