Magnaflow · New
MagnaFlow Direct Fit Catalytic Converter Mustang 04 4.6L CA
MPN 454018 · Store SKU mag454018
Supplier stock checked 11/7/2026, 9:03:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 454018. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 454018 includes (4) O2 Port Plugs, (1) Flange Gasket, (2) Torca Clamps, (4) Nuts. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles. MagnaFlow specializes in superior catalytic converter and exhaust technology and each converter is designed to the exact original equipment specifications while keeping the Check Engine Light off. Magnaflow California Direct-Fit Catalytic Converter California CARB Direct-Fit Catalytic Converter California Direct-Fit Catalytic Converter
Manufacturer fitment & guides
Check 454018 against the manufacturer’s application information below.
More from Magnaflow ↗See the JuiceBuilt workshop ↗