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A direct-fit replacement catalytic converter for the passenger-side (rear right) bank of Nissan V6 4.0L trucks, mainly the Frontier and Xterra. It uses a ceramic honeycomb substrate in a stainless steel body, with mandrel-bent tubing, a 3/8-inch flange and 100% MIG welding, and it ships with gaskets, nuts and bolts so it bolts on without fabrication. It is EPA compliant, not CARB approved, so check your state's rules before buying. Against generic universal converters it fits and flows better; against OEM it is cheaper but has a shorter track record on long-term durability.
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Lowest price we've seen: $387.00 on Nov 9 at Elite Race Fab. Tracked across 12 stores since Nov 9.
Owners of Frontier and Xterra V6 trucks generally report a clean bolt-on fit and a fix for check-engine codes tied to a failed converter. Complaints center on CARB-state legality and occasional fitment adjustments.







