Cold Air Intake for Range Rover Land Rover Full Size Non-Sport (2013-2022) 5.0L Supercharged

High-Flow Cold Air Intake for 2013-2022 Land Rover Range Rover (AJ133 / L405)

Designed specifically for full-size L405 models, this direct-fit dual cold air intake replaces the restrictive factory airboxes to lower intake air temperatures, increase volumetric efficiency, and deliver a proven 9-11 wheel horsepower gain.

The Stock Range Rover L405 Airbox Bottleneck

The OEM intake system on the 5.0L Supercharged AJ133 V8 prioritizes acoustic dampening over forced induction efficiency. Factory engineers designed heavily baffled, enclosed plastic airboxes with corrugated intake tubes that create significant airflow turbulence and boundary layer separation. Under sustained heavy load or high ambient temperatures, the factory plastic enclosures suffer from severe heat soak, retaining engine bay heat and raising intake air temperatures (IATs). As IATs climb, the ECU pulls timing to prevent pre-ignition, resulting in a noticeable reduction in throttle response and power output, effectively starving the twin-vortices supercharger of the dense, cold air it requires.

The Engineering Solution

This "R performance" dual air intake kit engineers the restrictions out of the L405 intake tract. By completely deleting both factory airboxes, this system utilizes high-flow, low-restriction conical filters paired with precision-engineered heat shields. The heat shields form a physical thermal barrier against ambient engine bay temperatures, ensuring the filters draw directly from the coolest available ambient airflow. This streamlined intake path reduces pressure drop across the supercharger inlet, allowing the Roots-type blower to operate more efficiently. The result is a simple 30-minute, direct bolt-on installation that yields an immediate 9-11 whp increase, sharper throttle response, and the definitive supercharger whine that factory enclosures muffle. The kit includes all necessary premium filters, thermal-blocking heat shields, reinforced clamps, and comprehensive mounting hardware.

Technical Specifications

Compatibility

• 2013-2022 Land Rover Range Rover Full Size 5.0L Supercharged V8
• Note: This listing is specific to the Full Size model and does NOT fit Range Rover Sport models

The Land Rover Precision Standard

Engineered to complement the sophisticated electronics of the L405 chassis, this intake system maintains proper MAF sensor scaling to prevent lean conditions and ensure strict no-CEL (Check Engine Light) operation. It delivers the precise power enhancement, thermal management, and robust induction sound expected from a flagship European luxury SUV.