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The MagnaFlow 21-250 is a direct-fit replacement catalytic converter for OBDII vehicles, built to bolt on without cutting or welding. It uses mandrel-bent stainless steel tubing and a single laser-fusion weld to cut leak risk, and it is 3D-scanned from the OE part so fit matches the factory unit. It is EPA Federal compliant, not California CARB legal, so check your state's rules before buying. Against universal-fit converters it costs more but saves installation labor and avoids the check engine light that generic fits often trigger.
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Lowest price we've seen: $847.00 on Nov 14 at Amazon. Tracked across 1 store since Nov 14.
Owners of direct-fit MagnaFlow converters generally report clean bolt-on fit and no check engine light afterward. Complaints center on fitment mismatches on some vehicles and the premium over universal units.
The MagnaFlow 21-250 is a direct-fit replacement catalytic converter built to match the original equipment design. It is made of corrosion-resistant stainless steel with free-flowing mandrel-bent tubing. A single laser fusion weld replicates the OE design and reduces the possibility of a leak.
The compact, low-mass design allows for greater thermal efficiency. MagnaFlow used 3D scanning systems during development so the part fits and functions like the original. It installs with the proper tools, with no cutting or welding required.
It is designed to meet or exceed Federal emissions requirements set by the EPA. It complies with legal standards for OBDII Federally registered vehicles with California or Federal/EPA emission systems.
