The cost to weld a catalytic converter starts with the price of the correct part and the labor to fit it. MagnaFlow lists its 99205HM universal converter at $194 for the part alone. A shop needs your vehicle and emissions information to establish whether a weld-in unit is an option and price the job.
Cost to Weld a Catalytic Converter
Compare Weld-In and Direct-Fit Quotes
MagnaFlow’s 99205HM is a federal-market example. A universal part may need custom fitting, and a direct-fit assembly can include the pipes or manifold as well as the converter. Compare the same approved part and installation scope across quotes.
Confirm the Emissions Application
Give the shop the VIN and under-hood emissions label. In California, check the Executive Order and application listing for an aftermarket converter. Federal anti-tampering rules also apply to removal of emissions equipment.
CARB aftermarket converter guidance
Ask What the Labor Covers
Find out whether the price includes diagnosing the failure, cutting and fitting, rusted pipe, oxygen sensors, gaskets and a leak check. If the shop proposes a complete assembly, ask which pieces come with it.
Frequently Asked Questions
Does $194 include welding?
No. That is MagnaFlow’s listing for one converter. Ask for a vehicle-specific price for the part and labor.
Can a shop weld in any universal converter?
Ask it to document the emissions application and confirm that the part fits your vehicle under the applicable rules.
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