2.5” ID 409 Stainless Steel High-Flow Catalytic Converter (NON-CA)

⚠️ NOT FOR USE OR SALE IN CALIFORNIA*

Engineered to improve exhaust efficiency and reduce restriction, our 2.5” 409 Stainless Steel High-Flow Catalytic Converter is designed for performance-focused builds where increased flow and durability are essential. This catalytic converter is ideal for enthusiasts and fabricators looking to optimize exhaust performance while maintaining a catalytic element in the system.

Product Highlights

• High-Flow Substrate Design
  Features a performance-oriented internal substrate that reduces exhaust backpressure compared to restrictive OEM catalytic converters, helping support increased horsepower and improved throttle response.
• 409 Stainless Steel Construction
  Manufactured from high-quality 409 stainless steel for excellent heat resistance, corrosion protection, and long-term durability in high-temperature exhaust environments.
• 2.5” Inlet / Outlet Diameter
  Precision-sized 2.5” inlet and outlet connections make this catalytic converter well-suited for a wide range of custom exhaust systems and performance applications.
• Universal, Fabrication-Friendly Design
  Universal fitment allows flexibility for custom builds, turbocharged applications, and naturally aspirated performance setups.

Features

• Universal weld-in installation
• Optimized for improved exhaust flow
• Suitable for performance and modified vehicles
• Raw stainless steel finish, ready for fabrication
• Designed for off-road and competition use only

Specifications

• Material: 409 Stainless Steel
• Inlet/Outlet Diameter: 2.5”
• Substrate: High-flow catalytic core
• Finish: Raw stainless (uncoated)
• Installation: Welding required

Benefits

• Reduced exhaust restriction compared to OEM catalytic converters
• Supports improved exhaust flow and engine efficiency
• Durable stainless steel construction for long service life
• Ideal for custom exhaust fabrication and performance upgrades

For builders seeking a balance of improved flow, durability, and flexibility, the 2.5” 409 Stainless Steel High-Flow Catalytic Converter delivers reliable performance where regulations allow.

*Important Emissions & Legal Notice

This product is NOT CARB compliant and does NOT carry a California Air Resources Board (CARB) Executive Order (EO).

It is not legal for sale or use in the state of California.

This catalytic converter is intended for off-road and competition-use vehicles only and must not be installed on vehicles operated on public highways in regulated states. It is the customer’s responsibility to comply with all applicable federal, state, and local emissions laws.

More information here.