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4' x 8' High-Flow Catalytic Converter - 200 Cell/cpsi Metallic Substrate - 2.5' In/Out - EPA Compliant

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$62.99

$ 29 .99 $29.99

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  • Compact & Durable Design Featuring a compact 4.00-inch diameter x 8.00-inch long spun stainless steel outer casing, this catalytic converter is perfect for tight spaces while ensuring long-lasting durability and resistance to high temperatures.
  • High-Flow 200 Cell Metallic Substrate The high-flow 200-cell metallic substrate internals are designed for severe-duty applications, providing optimal exhaust flow and improved engine performance.
  • Federal EPA Compliant This catalytic converter meets Federal US EPA emissions standards, making it a reliable choice for most states. Note: Not legal for sale or use in California or states with California emissions standards.
  • Universal Fit for Wide Applications Designed with a 2.5-inch inlet/outlet, this catalytic converter is compatible with a wide variety of vehicles, offering flexibility for upgrades and repairs. Suitable for engines up to 5.7L.
  • Easy Welding Installation Designed for welding installation, this catalytic converter ensures a secure and permanent fit, making it ideal for both DIY enthusiasts and professional repair shops.



Product Description

4" x 8" High-Flow Catalytic Converter - 200 Cell/cpsi Metallic Substrate - 2.5" In/Out - EPA Compliant

2.5" Cat Converter High Flow Stainless Metallic Core 200 Cell 8" Long (EPA Compliant)

4" x 8" High-Flow Catalytic Converter - 200 Cell/cpsi Metallic Substrate - 2.5" In/Out - EPA Compliant

Inlet size: 2.5''

Body overall length: 8''

Body diameter: 4''

high-flow 200-cell metallic substrate

What's inside of this catalytic converter?

Metallic Catalyst

200 cpsi High Flow Metallic Catalyst Core

Catalytic Converters Core: Metallic vs Ceramic

Metallic vs Ceramic Catalytic Converters

Ceramics have primarily been used as the substrate for catalytic converters and share a bigger market than metallic substrates. However, metallic substrates have been used since they provide a lower resistance to air flow and require less heat to warm up.

Having a lower resistance to air flow is achievable because the corrugated metal roll allows gases to flow through almost 90% of the total front area while still providing more surface area than the ceramic monolith.

One advantage of metallic substrate is it has a lower specific heat capacity and higher thermal conductivity which allow the converter heated up quickly. It can be moved closer to the engine where exhaust gases are hotter and the converter can react quicker at higher temperatures. This is not applicable to the ceramic substrate because it cannot endure quick heating and might crack.

Another advantage of a metallic substrate is the ability to more easily manufacture the channels in different shapes to increase turbulence of the flowing gas. Increasing the turbulence makes the exhaust come in contact with more catalyst surface area thus converting more of the exhaust into less harmful emissions with a smaller volume.


Mr and Mrs CP
Reviewed in the United States on May 4, 2025
This High-Flow Catalytic Converter works as it should. Functions well. Nice quality. Highly recommend
llllBULLSEYE
Reviewed in the United States on May 31, 2025
They helped with the smell while still being Hight flowing cats.inside also the honeycomb is actual metal. much better
Tired dinosaur
Reviewed in the United States on May 29, 2025
Nice replacement very nice build quality works as intended.
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