Catalytic Converter for Land Rover Range Rover (2010-2012) 5.0L Left & Right

Direct-Fit High-Flow Left & Right Catalytic Converter Set for 2010-2012 Land Rover Range Rover

What it Does: The Left & Right catalytic converter set replaces deteriorated factory emissions equipment on the 2010-2012 Land Rover Range Rover to restore proper exhaust scavenging, eliminate catalyst efficiency trouble codes, and maintain legal emissions compliance.

The Stock Land Rover Range Rover Catalytic Substrate Degradation

The factory ceramic monoliths in the L322 chassis exhaust downpipes endure extreme thermal cycling from the high-compression AJ133 5.0L V8 engine. Over time, factory substrates suffer washcoat thermal degradation, matrix fracturing, and internal fouling, resulting in restricted exhaust flow, decreased fuel economy, and persistent P0420/P0430 diagnostic trouble codes. Excessive backpressure from collapsing factory catalysts also traps radiant heat within the engine bay, accelerating fatigue on adjacent engine components.

The Engineering Solution

Constructed with durable stainless steel outer casings and high-efficiency ceramic honeycomb substrates, this dual converter set restores unrestricted gas velocity across the exhaust bank. Heavy-duty robotic welds protect against thermal expansion stresses and road-vibration cracking. Each assembly features OE-spec laser-cut flanges, factory-location oxygen sensor bungs, and supplied installation hardware to ensure exact flange-to-manifold alignment without custom pipe bending or fabrication.

Technical Specifications

Compatibility

• 2010 Land Rover Range Rover 5.0L V8
• 2011 Land Rover Range Rover 5.0L V8
• 2012 Land Rover Range Rover 5.0L V8

Frequently Asked Questions

Does this fit the L322 Range Rover?
Yes, this is a direct fit for the 2010-2012 Land Rover Range Rover equipped with the AJ133 5.0L V8 engine.

Will this assembly resolve P0420 and P0430 DTCs?
Yes, restoring the catalyst core density and substrate surface area re-establishes normal secondary oxygen sensor voltage parameters to resolve catalyst efficiency faults.

The Land Rover Precision Standard

Engineered to satisfy the tight diagnostic tolerances of European engine management systems, this catalytic converter set delivers precise backpressure balancing to prevent false sensor triggers and preserve refined V8 performance.