Walker Exhaust Exhaust Manifold with Integrated Catalytic Converter P/N:83185
Lock in cleaner exhaust flow and emissions control on your Honda with the Walker CalCat Exhaust Manifold with Integrated Catalytic Converter 82450. It drops in as a direct-fit replacement for the 2001-2005 Honda Civic, combining the exhaust manifold and catalytic converter into one bolt-on unit that attaches to the engine cylinder head and matches the factory downstream connections.
A precise OE-style coating process gives the substrate its catalyst layer for consistent emissions performance. Backed by Walker's 50,000-mile/80,000-kilometer warranty covering emissions and structural defects. See the Buyer's Guide tab to confirm the exact engine for your Civic.
This part cross-references / interchanges with the following part numbers:
What is the Walker 82450?
It's an exhaust manifold with an integrated catalytic converter — a single bolt-on assembly that routes exhaust from the cylinder head and treats it for emissions on the 2001-2005 Honda Civic.
Will it fit my vehicle?
It's a direct-fit replacement for the 2001-2005 Honda Civic. Check the Buyer's Guide tab to confirm it matches your specific engine before ordering.
Is this converter legal in California?
Yes. It's CARB compliant and legal for sale in CA, CO, NY and other CARB states when used on an approved application. Consult your state's aftermarket converter regulations.
Does it come with a warranty?
Walker backs it with a 50,000-mile/80,000-kilometer warranty covering emissions and structural defects.
What are signs this part may need replacing?
A check engine light, a rattle from a broken internal substrate, a sulfur odor, or a failed emissions test can point to a failing converter. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.