Walker Exhaust Catalytic Converter-Universal 82501
Walker Exhaust Catalytic Converter-Universal 82501 - view 2
Walker Exhaust Catalytic Converter-Universal 82501
Walker Exhaust Catalytic Converter-Universal 82501 - view 2

Front Catalytic Converter-Universal for 2003-2004 Toyota Corolla & More - Walker Exhaust 82501

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$308.99
MPN: 82501
Item Package Quantity: 1
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Walker Exhaust Catalytic Converter-Universal P/N:82501
Walker Exhaust Catalytic Converter-Universal P/N:82501
$308.99

Help keep your exhaust flowing cleanly and your vehicle emissions-compliant with the Walker Exhaust CalCat CARB Universal Catalytic Converter 82501. This front-position converter uses a 2" inlet (ID) and 2" outlet (ID) and fits many vehicles, among them the 2003-2004 Toyota Corolla, 2003-2004 Toyota Matrix and 2003-2004 Pontiac Vibe — see the Buyer's Guide tab for the full list and engine details.

  • CARB-certified: legal for sale in California, Colorado, New York and other states requiring CARB-compliant replacement converters when used on an approved application; consult your state's aftermarket converter regulations.
  • Durable build: stainless-steel body with aluminized pipe and heat shields.
  • Consistent performance: a precise OE-style coating process lays the catalyst onto the substrate, and a high-technology washcoat is formulated to deliver superior performance compared to EPA-compliant converters.
  • Flexible fitment: a customizable universal design with expandable bushings; installation may require specialized fabrication and/or welding.

Backed by Walker's 50,000-mile / 80,000-kilometer limited warranty covering emissions performance and structural integrity. If a failed converter is the cause of your emissions failure, this replaces it.

Frequently Asked Questions

Will this converter fit my vehicle?

It fits many vehicles, among them the 2003-2004 Toyota Corolla, 2003-2004 Toyota Matrix and 2003-2004 Pontiac Vibe. Check the Buyer's Guide tab for the full list and engine details.

Is this converter legal in California?

Yes. It's CARB-certified and legal for sale in California, Colorado, New York and other states requiring CARB-compliant replacement converters when used on an approved application. Consult your state's aftermarket converter regulations.

Does it require welding to install?

This is a universal converter with a customizable design and expandable bushings, so installation may require specialized fabrication and/or welding.

What are the inlet and outlet sizes?

It has a 2" inlet (ID) and a 2" outlet (ID).

What are signs my catalytic converter may need replacing?

Common signs include a check engine light, a failed emissions test, a sulfur smell, or reduced performance. Diagnose the underlying cause before replacing, since these symptoms can have other sources.

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