Catalytic Converter Universal

Universal Catalytic Converters

Universal catalytic converters are designed to be welded or clamped into any exhaust system, making them ideal for custom exhaust builds, vehicles without a direct-fit option, or replacing a converter on a modified exhaust setup. Universal cats come in a range of inlet and outlet sizes, substrate types, and flow capacities to match nearly any application.

OneFastShop carries universal catalytic converters including CARB-compliant and Federal EPA-compliant options, high-flow metallic and ceramic substrate converters, mini-cats, spun-body and round-body designs, and converters in popular inlet/outlet sizes from 2 inches to 3 inches and beyond for custom exhaust fabrication on cars, trucks, and performance builds.

Every universal catalytic converter at OneFastShop ships brand-new with manufacturer warranty coverage. Whether you're fabricating a custom exhaust, replacing a converter on a modified vehicle, or need a specific size that isn't available in a direct-fit option, OneFastShop has the universal cat. Shop the full universal catalytic converters collection today.