PLM High Flow Performance 400-Cell EPA Metallic Catalytic Converter

PLM High Flow Performance 400-Cell EPA Metallic Catalytic Converter

SKU: PLM-CAT-2.5-MET-400

Product Description

The PLM High Flow Performance 400-Cell EPA Metallic Catalytic Converter is engineered to deliver an ideal balance of emissions control, exhaust flow, and performance. Designed for enthusiasts who want improved efficiency without sacrificing drivability, this catalytic converter features a high-quality 400-cell metallic core that provides superior filtration while maintaining smooth exhaust flow.

Compared to lower cell-count converters, the 400-cell design helps retain factory-like emissions characteristics, making it an excellent choice for street-driven vehicles that still demand performance upgrades. When paired with PLM headers or manifolds, this catalytic converter maximizes exhaust efficiency while maintaining compliance with EPA standards.

Constructed from durable stainless steel and designed for universal applications, this converter supports both cut-and-clamp or weld-on installations, allowing flexibility for a wide range of exhaust setups.

Key Benefits

• Improved exhaust flow with enhanced emissions filtration

• EPA-compliant design for responsible performance upgrades

• Helps reduce the chance of check engine lights compared to lower cell cats

• Ideal upgrade when installing performance headers or manifolds

• Durable metallic core for long service life

Features

• 400-cell metallic catalytic core

• EPA-compliant design

• OBD-II compliant, 48-state legal (Restricted in CA and NY)

• Stainless steel construction

• Available inlet/outlet sizes: 2.5” or 3.0”

• Body diameters: 3.0” and 3.5”

• Easy cut-and-clamp or weld-on installation

• Sold individually (one catalytic converter per order)

Specifications

• Core Type: Metallic

• Cell Density: 400 cells per square inch

• Body Length: 4 inches

• Overall Length: 7 inches

• Material: Stainless steel

400-Cell vs. 200-Cell Explanation

A catalytic converter is made up of many small cells coated with precious metals that help oxidize exhaust gases not fully burned by the engine. A 400-cell catalytic converter contains 400 cells per square inch, providing greater filtration and emissions control compared to a 200-cell unit.

PLM recommends the 400-cell catalytic converter for customers who want near-factory emissions behavior with improved performance, and in most cases, reduced likelihood of triggering a check engine light. For maximum flow and minimal restriction, a 200-cell option may be preferred.

Vehicle Compatibility

• Universal fitment

• Please verify sizing requirements before installation

Installation Notes & Emissions Disclosure

• This catalytic converter is not intended as an OEM factory replacement

• EPA-compliant does not guarantee it will pass local or state emissions or inspections

• Federal law prohibits tampering with emissions control devices

• Please check your local regulations regarding aftermarket catalytic converters

• Professional installation is recommended

California Proposition 65 Warning

This product contains Nickel, known to the State of California to cause cancer and reproductive harm.