Catalytic Converter for Chrysler 300 (2005-2010) 3.5L Right

Direct-Fit High-Flow Catalytic Converter for 2005-2010 Chrysler 300

What it Does: The Right-Side Catalytic Converter replaces the degraded factory emissions unit on the 2005-2010 Chrysler 300 to restore optimal exhaust gas velocity, clear catalyst efficiency trouble codes, and reduce parasitic backpressure.

The Stock Chrysler 300 Catalyst Degradation & Restriction

Factory catalytic assemblies on the high-mileage LX platform frequently suffer from internal ceramic substrate crumbling, thermal stress washcoat depletion, and carbon fouling from extended heat cycles. Over time, the restricted cell core creates severe exhaust backpressure behind the EGG 3.5L SOHC V6, driving up exhaust gas temperatures (EGTs), degrading scavenging efficiency, and routinely triggering diagnostic trouble codes such as P0420 and P0430. Corroded OEM mild steel collector flanges and deteriorated welded junctions further cause persistent pre-converter exhaust leaks that disrupt downstream O2 sensor stoichiometry.

The Engineering Solution

Engineered as a direct bolt-on assembly, this passenger-side unit features a durable 409 stainless steel housing designed to resist thermal expansion cracking and corrosive road elements. Inside, a high-density ceramic honeycomb substrate is loaded with precious metal washcoats (platinum, palladium, rhodium) to deliver efficient catalytic oxidation and reduction while maximizing flow rate cross-section. Precision robotically welded OE-style flanges match the factory manifold dump and mid-pipe connections exactly, eliminating the need for cutting or custom pipe expansion. Pre-threaded, CNC-machined oxygen sensor bungs ensure plug-and-play installation of stock O2 sensors without harness stretching or signal distortion.

Technical Specifications

Compatibility

• 2005 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)
• 2006 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)
• 2007 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)
• 2008 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)
• 2009 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)
• 2010 Chrysler 300 Touring / Limited 3.5L V6 (Right / Passenger Side)

Frequently Asked Questions

Does this fit the LX 300?
Yes, this is a direct fit for the 2005-2010 Chrysler 300 equipped with the 3.5L EGG V6 engine on the LX chassis.

Will this assembly resolve a downstream P0420/P0430 CEL code?
Yes, provided the upstream fueling and O2 sensors are functional, the active washcoat substrate restores emissions conversion to factory parameters.

The Chrysler Muscle Standard

Preserve the robust tone and unrestricted exhaust scavenging of your Mopar cruiser. This replacement ensures factory-grade flow characteristics, resilient hardware fitment, and reliable emissions compliance for dependable highway performance.