Magnaflow 03-05 Jaguar S-Type 4.2L Direct Fit Converter

When your 2003-2005 Jaguar S-Type needs a new catalytic converter, you're getting a direct-fit unit from Magnaflow that's built to keep your check engine light off. This converter is specifically designed for your 4.2L S-Type, meaning it's engineered to meet or exceed California Air Resource Board (CARB) requirements, so it's legal for use in California and other states with strict emissions standards. You'll receive the converter along with the necessary gaskets and hardware, making the installation process smoother by eliminating the need to reuse corroded factory parts.

Magnaflow builds this converter with free-flowing, mandrel-bent tubing and a durable 409 stainless steel body that resists corrosion for a long service life. They use advanced 3D scanning during their research and development to ensure this part fits and functions just like the original equipment. The spun body design replicates the OE style, and a single laser fusion weld helps prevent leaks. Its compact, low-mass design also contributes to better thermal efficiency.

This converter is designed to be a direct replacement, so no cutting or welding is needed for installation, though you will need the proper tools. It interchanges with several OE part numbers, including XR858404 and XR858405, ensuring a proper fit for your Jaguar S-Type.