When a standard catalytic converter just won't do, we offer to you the Vibrant Metal Core Catalytic Converter. 100% stainless steel construction so it will not rust and provides years of worry free operation. The metal monolith core is much more resistant to the effects of vibration than standard ceramic core catalytic converters and is capable of withstanding much higher temperatures than ceramic catalytic converters. 300 cell per Sq. Inch catalyst flows at 578 CFM, up to 40% better than a typical ceramic core converter. The Vibrant Metal Core catalytic converter is suitable for engines up to 5 liters in displacement.