Eastern Catalytic Direct-fit Converters

Direct Fit ApplicationsWe offer over 1,400 Direct-fit converters for cars, vans, SUVs, and light trucks, all built to exact OE dimensions with OE-quality flanges and flex assemblies. Covering over 46,000 applications, they feature our proprietary catalytic chemistry and high-flow design that maximizes engine output and catalytic efficiency. 

Most of our Direct-fit Converters include Eastern’s Value Pack installation kits with everything you need for a fast, easy installation, including hardware, gaskets, fasteners, studs, and accessories.

Where our engineers have recommended their use, post ‘96 Direct-fit converters use our new ECO II and ECO III catalysts.


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CARB compliant Universal and Direct-fit converters. Learn more about ECO CARB Series.

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Designed to be effective on most complex or second generation on board diagnostic (OBD II) systems.

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Designed with twice the amount of Rhodium to help keep the MIL off on vehicles with high mileage, low emissions, or higher than normal emissions.

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Developed specifically to meet the emissions challenges of GM 2.2, 3.1, 3.4, and 3.8L engines.
Learn more about ECO GM Series.


Many of our Direct-fit Converters include our Value Pack™ installation kits with everything you need for a fast, easy installation:

  • Air tube and hose clamps
  • Manifold nuts and bolts
  • Fuel injector air tube connector
  • Air tube plug
  • Complete installation instructions