Description
Overview
The Flowmaster Catalytic Converter-Universal-200 Series is a compact, round-body converter engineered for a wide range of universal exhaust builds. If you’ve ever asked what a catalytic converter is or what a catalytic converter does, the short answer is that this 3-Way catalytic converter uses a chemical reaction across its internal substrate to convert exhaust gases as they pass through. Built with Flowmaster quality, it delivers dependable performance in demanding conditions while fitting into tight chassis spaces where larger units simply won’t work.
At its heart is a High Flow 200 Cell Metallic Substrate, purpose-built for severe-duty and high-temperature applications. The spun outer casing measures a compact 4.00-inch diameter by 8.00-inch length, and the housing is constructed from durable stainless steel. With 3.00-inch inlet and outlet diameters, weld-on and slip-fit connections, and a round core shape, this converter is designed to integrate cleanly into custom exhaust plumbing.
What It’s Built For
This unit is intended for customized Pre-OBDII racing applications, and serves as a “green” solution for vintage hot rods or vehicles that did not originally come equipped with catalytic converters from the factory. It meets all EPA 49-state requirements, but it is Not CARB compliant, Not intended to meet on-highway compliance programs, and Not Legal for Sale or for Use in California. It may also not be legal in states that follow CARB regulations, so confirm the rules in your area before ordering.
Key Highlights
- High Flow 200 Cell Metallic Substrate for severe-duty, high-temperature use
- Compact 4.00 in. diameter x 8.00 in. long spun stainless steel casing for tight-space fitment
- 3.00-inch inlet and outlet diameters with weld-on, slip-fit connections
- 3-Way, round-core universal design; Standard Grade construction
- Meets all EPA 49-state requirements; Emission Code 4, Pre-OBDII format
- Rated for a maximum engine size of 5.7L and gross vehicle weight up to 6,000 lbs
Fitment Notes
This is a universal-fit catalytic converter with no oxygen sensor port and no heat shield included. It uses new hangers (not included) and is not air tube kit adaptable. Because the connections are 3.00-inch slip-fit and weld-on, it’s ideal for custom fabrication where you’re matching or upgrading a 3.00-inch exhaust system. Always verify your engine displacement (5.7L max), vehicle weight rating (6,000 lbs max), and local emissions laws before installation.
Whether you’re planning a straightforward catalytic converter replacement, a catalytic converter repair on a custom build, or a fresh catalytic converter fix for a vintage hot rod, this Flowmaster 200 Series unit combines proven metallic-substrate durability with a space-saving footprint. Note the California Proposition 65 warning applies to this product.
