AP Exhaust Catalytic Converter,Catalytic Converter-Direct Fit P/N:643028

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$312.99
MPN: 643028
Item Package Quantity: 1
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AP Exhaust Catalytic Converter,Catalytic Converter-Direct Fit P/N:643028
AP Exhaust Catalytic Converter,Catalytic Converter-Direct Fit P/N:643028
$312.99

Keep your Subaru's exhaust flowing cleanly and help it meet federal emissions requirements with the AP Exhaust Direct-Fit Catalytic Converter 643028. It installs as a direct-fit rear converter for the 2006-2008 Subaru Forester [H4-2.5L] and the 2006-2007 Subaru Impreza [H4-2.5L], dropping into the factory location for a bolt-in swap.

Built to Federal / EPA direct-fit standards, this converter uses a ceramic substrate to convert exhaust pollutants as gases pass through, restoring proper aftertreatment when the original unit has failed.

  • 409 stainless steel shell and neck construction for longer life.
  • Ceramic substrate with Aristo Clean by Design catalyst technology to handle demanding emissions duty.
  • 3-bolt welded inlet flange and 2-bolt welded outlet flange with gasket stub for a direct-fit connection.
  • Inlet and outlet gaskets included; measures 53.5 in overall length with no sensor ports.

This is a Federal / EPA converter and is not CARB certified — it is not legal for sale or use on vehicles registered in California or states that follow CARB emissions standards. Made in the United States. Signs the original converter may need replacing include a failed emissions test, a catalyst-efficiency check-engine code, a rattle from a broken internal substrate, or a sulfur smell; diagnose the cause before replacing.

Frequently Asked Questions

Which vehicles does this converter fit?

It's a direct-fit rear converter for the 2006-2008 Subaru Forester [H4-2.5L] and 2006-2007 Subaru Impreza [H4-2.5L], one per application. Confirm your engine in the Buyer's Guide tab.

Is this converter legal in California?

No. It's a Federal / EPA converter and is not CARB certified, so it is not legal for sale or use on vehicles registered in California or other states that follow CARB emissions standards.

Are gaskets and hardware included?

Inlet and outlet gaskets are included. The catalog lists no inlet or outlet mounting hardware, so consult the vehicle service information for the correct fasteners and whether they may be reused.

How does it connect to the exhaust?

It uses a 3-bolt welded inlet flange and a 2-bolt welded outlet flange with a gasket stub, matching the factory connections for a direct-fit installation.

How do I know if my converter needs replacing?

Common signs include a failed emissions test, a catalyst-efficiency check-engine code, a rattle from a broken internal substrate, or a sulfur odor. Diagnose the cause before replacing, as other parts can be involved.