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Catco 4973 Catalytic Converter

Brand	Catco 4973
Body Material	Stainless steel
Inlet Gasket	No
Inlet Hardware	No
Inlet Type A	2 bolt welded flange
O2 Sensor Ports	1
Outlet Gasket	No
Outlet Hardware	No
Outlet Type A	3 bolt welded flange
Overall Length (IN)	19.5
Substrate Material	Ceramic
Type	Federal / epa direct-fit
Fits	Honda · 6 vehicles

Direct-fit replacement. Built to OE dimensions for straightforward installation.

Ceramic substrate. Supports efficient converter performance.

Stainless steel body. Helps resist corrosion in demanding exhaust conditions.

$27.96Free shipping

In stock · usually ships same day before 1pm CST

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Honda S2000 Catalytic Converter

Restore exhaust flow and emissions control on a 2000-2005 Honda S2000 with this Catco Federal / EPA direct-fit catalytic converter. Part number 4973 is built to OE dimensions for straightforward fitment and consistent alignment with the factory exhaust layout.

Key Features

Federal / EPA direct-fit catalytic converter for the Honda S2000
Stainless steel body for corrosion resistance
Ceramic substrate material for efficient exhaust aftertreatment
2-bolt welded flange inlet and 3-bolt welded flange outlet
One O2 sensor port
Overall length: 19.5 inches
Built to exact OE dimensions for proper fitment

Detailed Description

Catco part number 4973 is a direct-fit catalytic converter for 2000-2005 Honda S2000 models. It uses a stainless steel body with a ceramic substrate and OE-style flange connections to match the factory exhaust configuration. The converter is engineered for Federal / EPA applications and is listed for Federal and California emissions fitment, with state-use restrictions noted by the manufacturer.

Catco uses advanced manufacturing methods and automated production processes to maintain consistent dimensions and fitment across each unit. For shoppers searching for a Honda S2000 catalytic converter, Honda S2000 direct-fit converter, or Catco 4973 replacement catalytic converter, this part is built around the original exhaust layout rather than a universal design.

Common Issues Addressed

Failed catalytic converter efficiency codes
Restricted exhaust flow from a worn or damaged converter
Exhaust leaks at flange connections
Emissions test failure related to converter performance
Noise or rattling caused by internal substrate deterioration

Installation Notes

Fits 2000-2005 Honda S2000, N/A. Verify emissions requirements before installation, since this Federal / EPA direct-fit converter is not for sale or use on vehicles licensed in CA, CO, ME, or NY. Check local regulations for additional restrictions. Confirm flange style, O2 sensor port location, and overall length against the original exhaust component before installation.

Quality Assurance

Catco builds this converter to OE dimensions using automated workstations, spinner welding equipment, and high-speed production lines to support consistent fitment and manufacturing accuracy. Part number 4973 is produced for direct replacement use on the specified Honda S2000 applications.

This part fits 6 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
2005	Honda	S2000	2.2L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2004	Honda	S2000	2.2L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2003	Honda	S2000	2.0L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2002	Honda	S2000	2.0L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2001	Honda	S2000	2.0L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2000	Honda	S2000	2.0L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
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