MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51528

This direct-fit MagnaFlow catalytic converter (part 51528) is engineered as a replacement for 2001–2004 Nissan Frontier models and compatible Xterra years, offering an OEM-grade option for enthusiasts restoring or upgrading their exhaust system. Designed using 3D scanning metrology to match original equipment fit and flow, this unit helps maintain factory performance and can prevent check-engine codes related to a failing converter. Constructed with mandrel-bent tubing and stainless steel to resist corrosion, the converter includes the gaskets and hardware needed for a direct-fit installation with no cutting or welding required when using proper tools. It interchanges with OE numbers such as 20802-3S525 and 20802-3S526. This is a Federal/EPA-compliant, OEM-grade replacement; it is not CARB-certified and may not be legal for sale or installation in California, Colorado, or New York. Features: Direct fit catalytic converters are designed to bolt on to the existing exhaust for quick and easy installation - no cutting or fabricating should be necessary. Ribbed body gives added strength for excellent durability and long life. Constructed of 100% stainless steel (unless noted, select metallic converters are available for off road use). Rust and oxidation resistant. Built using a monolithic honeycomb catalyst. Seam welded close to the converter body for a strong tight bond that prevents the catalyst from becoming loose and shifting. All joints are welded 1/2\" overlapped joints to ensure leak free quality. Uses an OEM style ribbed heat shield that creates a rigid wall of heat protection and adds structural stability (some converters have been designed to no longer need a heat shield). Ships same day if order is placed by 1:00 PM CST. Made in the USA – Oceanside, CA.