LAMBORGHINI HURACAN LP640 EVO SPYDER catalytic converter

In 2026, the Catalytic Converter for the Lamborghini Huracán LP640-4 Evo Spyder is a high-value emission control component integrated into the exhaust manifold system. Due to the stringent Euro 6d / EPA Tier 3 emissions standards applicable to the 2020–2026 models, these converters use a high density of precious metals (Platinum, Palladium, and Rhodium).

1. Technical Identification

• Part Numbers: The Huracán Evo typically uses a bank-specific setup.

  • Left Bank (1-5): 4T0254501 (plus revision suffix).

  • Right Bank (6-10): 4T0254502 (plus revision suffix).

• Design: The “Evo” version is specifically tuned for the $640\text{ CV}$ engine. While it looks similar to the LP610-4 unit, the internal cell density (CPSI) and flow characteristics are optimized for the higher output and the specific backpressure requirements of the LDVI (Lamborghini Dinamica Veicolo Integrata) system.

• Spyder Consideration: The Spyder and Coupe share the same engine and exhaust manifold architecture; there is no specific “Spyder-only” catalytic converter.

3. Common 2026 Issues & Maintenance

• “Clogged” Cells: If the car is frequently driven in “Strada” mode at low speeds or idling extensively, carbon buildup can reduce flow. This often triggers a “P0420/P0430” (Catalyst Efficiency Below Threshold) error code.

• Heat Shield Rattle: The Evo generates immense heat. By 2026, some owners are reporting that the spot-welded heat shields on the converter bodies are starting to rattle.

• O2 Sensor Compatibility: Each converter has ports for “Pre-Cat” and “Post-Cat” Oxygen (Lambda) sensors. If you replace the converter, it is highly recommended to install new OEM sensors to ensure the Evo’s sensitive ECU doesn’t trigger a limp mode.