Description
Flowmaster Universal Catalytic Converter — 3-Way, 200-Cell Metallic Substrate
Built for performance-minded builders, this Flowmaster Catalytic Converter delivers high-flow emissions treatment in a compact, weld-ready package. If you’ve ever asked what a catalytic converter does, the short answer is simple: it converts harmful exhaust gases into less harmful output as they pass through the substrate. This 3-Way design tackles that job with a Premium Grade 200 Cell Metallic Substrate engineered specifically for severe-duty and high-temperature use.
The spun stainless steel outer casing measures a tidy 4.00-inch diameter by 8.00-inch length, making it easy to route through tight chassis spaces where a bulky unit simply won’t fit. With 2.25-inch inlet and outlet diameters and slip-fit, weld-on connections at both ends, it drops cleanly into custom exhaust fabrication where a universal, adaptable converter is exactly what the build calls for.
Who It’s For
This is a universal-fit catalytic converter intended for customized Pre-OBDII racing applications, as well as a “green” upgrade for vintage hot rods and vehicles that never came equipped with a catalytic converter from the factory. It suits engines up to 5.7L and a maximum gross vehicle weight of 6000 lbs, giving fabricators a flexible foundation for a wide range of universal exhaust setups. Whether you’re planning a fresh build or a catalytic converter replacement on a custom system, the weld-on format lets you position it wherever your layout demands.
Key Highlights
- 3-Way, Premium Grade design with a high-flow 200 Cell Metallic Substrate for severe-duty, high-temperature operation
- Compact 4.00-inch diameter x 8.00-inch long spun stainless steel casing for tight-space fitment
- 2.25-inch inlet and outlet diameters with slip-fit, weld-on connections
- Universal fitment for engines up to 5.7L and up to 6000 lbs gross vehicle weight
- Pre-OBDII format with no oxygen sensor port location — ideal for custom and vintage builds
Fitment & Installation Notes
This converter uses new hangers, which are not included, and does not include a heat shield. There is no oxygen sensor port on the housing. Because both connections are slip-fit and weld-on, professional installation and custom exhaust work are recommended to achieve leak-free, secure joints.
Compliance
Important: this catalytic converter is a Pre-OBDII, universal unit and is NOT intended to meet on-highway compliance programs. It is NOT CARB (California) compliant, carries no CARB Executive Order Number, and is Not Legal for Sale or Use in California. It may also Not be Legal in states that follow CARB regulations. Please verify the rules for your intended application before purchase.
