Catalytic Converter for Toyota Solara (2004-2008) 3.3L Rear

Direct-Fit Rear Catalytic Converter for 2004-2008 Toyota Solara (XV30)

What it Does: The direct-fit rear catalytic converter replaces degraded emissions components on the 2004-2008 Solara to eliminate P0420/P0430 diagnostic trouble codes and restore factory exhaust velocity.

The Stock Toyota Solara Exhaust Flow Restriction and Catalyst Degradation

Factory exhaust systems on the second-generation XV30 platform suffer from dual-point mechanical breakdown over extended heat cycles. The OEM flex sections degrade from engine pitch, resulting in pinhole exhaust leaks upstream of the secondary oxygen sensor. Simultaneously, the factory ceramic washcoat inside the rear catalytic converter suffers thermal sintering and carbon fouling over high mileage. This degrades precious metal conversion efficiency, triggers stubborn check engine lights, and restricts exhaust scavenging from the rear bank of the transverse V6, increasing thermal retention against the cylinder heads.

The Engineering Solution

This replacement assembly incorporates a heavy-gauge 409 stainless steel body engineered for superior resistance to road de-icing salts and thermal fatigue. Internally, a dense honeycomb ceramic substrate delivers high surface-area contact with advanced washcoat loading, facilitating efficient reduction of NOx, CO, and unburned hydrocarbons without choking flow dynamics. The assembly features an integrated, interlock-lined flex joint that isolates engine rocking motion to prevent stress fractures at the flanges. Complete with thick, laser-cut mounting flanges and direct-fit hanger locations, this unit matches OE/interchange 643072 and 40665 for a leak-free bolt-on installation requiring zero cutting or TIG welding.

Technical Specifications

Compatibility

• 2004-2008 Toyota Solara Coupe (3.3L V6 3MZ-FE, Rear position with Flex Y-pipe)
• 2004-2008 Toyota Solara Convertible (3.3L V6 3MZ-FE, Rear position with Flex Y-pipe)
• Fits SE, SE Sport, and SLE trim configurations equipped with the 3.3L V6
• Does not fit 2.4L 4-cylinder (2AZ-FE) models

Frequently Asked Questions

Does this fit the XV30 Solara?

Yes, this is a direct fit for the 2004-2008 Toyota Solara equipped with the 3MZ-FE engine.

Is this catalytic converter legal for road use in California or CARB-compliant states?

No, this unit is 46-state legal and cannot be sold, shipped, or registered in California, New York, Colorado, or Maine.

The Toyota Touring Standard

Built to restore the refined acoustic dampening and smooth, linear powerband expected of Toyota's high-displacement V6, this direct replacement maintains proper backpressure balance without introducing cabin drone or resonance.