Catalytic Converter Set for Honda Pilot (2005-2008) 3.5L Bank 1 & Bank 2 and Rear

Direct-Fit EPA-Compliant Catalytic Converter Set for 2005-2008 Honda Pilot (YF1/YF2)

What it Does: The Catalytic Converter Set replaces deteriorated factory manifold and underfloor emissions units on the 2005-2008 Pilot to restore exhaust flow, clear check engine diagnostics, and reduce tailpipe pollutants.

The Stock Honda Pilot Catalytic Converter Failure

With accumulated mileage, the factory close-coupled manifold converters on the J35A6 and J35A9 V6 engines suffer thermal breakdown and physical degradation. Excessive thermal cycling breaks down the original washcoat, leading to catalyst poisoning, internal substrate fracture, and structural rattling. When the ceramic monolith breaks or sinters, it creates elevated exhaust backpressure that chokes volumetric efficiency, drops fuel economy, and triggers persistent OBD-II diagnostic trouble codes like P0420 and P0430.

The Engineering Solution

Engineered as a complete 3-piece replacement, this emissions system addresses all factory restriction points across Bank 1, Bank 2, and the rear underfloor location. Constructed with durable stainless steel tubular bodies, each unit features factory-matched laser-cut mounting flanges, OE-style exhaust hanger brackets, and precision-threaded oxygen sensor bungs to maintain factory harness routing. Internally, a high-efficiency ceramic honeycomb substrate utilizes precious metal surface loading to oxidize hydrocarbons and carbon monoxide while reducing nitrogen oxides, restoring federal emissions compliance and unhindered exhaust gas evacuation.

What's Included

• Bank 1 Manifold Catalytic Converter
• Bank 2 Manifold Catalytic Converter
• Rear Underfloor Catalytic Converter
• Exhaust Gaskets
• Mounting Studs and Nuts

Technical Specifications

Compatibility

• 2005 Honda Pilot 3.5L V6 (FWD / 4WD)
• 2006 Honda Pilot 3.5L V6 (FWD / 4WD)
• 2007 Honda Pilot 3.5L V6 (FWD / 4WD)
• 2008 Honda Pilot 3.5L V6 (FWD / 4WD)

Frequently Asked Questions & Fitment Warnings

Does this fit the YF1/YF2 Pilot?

Yes, this is a direct fit for the 2005-2008 Honda Pilot equipped with the J35A6 or J35A9 engine. Note: This system is EPA-compliant for federal emissions vehicles only and cannot be shipped to or installed on vehicles registered in California, Colorado, New York, or Maine.

Are cutting or welding modifications required for installation?

No, this assembly is engineered with factory-spec flanges and mounting hangers for a complete bolt-on installation using the provided hardware and gaskets.

The Honda Reliability Standard

Built to handle the demanding thermal loads of continuous highway towing and family hauling, this direct-fit exhaust configuration ensures factory backpressure profiles and consistent lambda sensor feedback across all driving regimes.