Custom Air Box to suit Toyota Landcruiser 100 / 105 Series LS1 Converted

100 / 105 Series Panel Airbox – LS1 Conversion

The Radius Fabrications 100 / 105 Series LS1 Conversion Airbox has been purpose-designed to suit LS-swapped LandCruisers where reliability, airflow, and filtration are critical.

This airbox is engineered to run a panel filter, offering excellent surface area and dust protection while still providing strong airflow for LS-powered setups. Designed as a direct fit to the factory airbox location, it allows for a clean and tidy install without unnecessary fabrication.

Built using proven Australian design and manufacturing processes, this airbox is ideal for touring, offroad use, and daily driving where engine protection and consistency matter just as much as performance.

Key Features

• Designed specifically for LS1 conversions in 100 & 105 Series LandCruisers

• Panel filter design for superior filtration and dust control

• Direct fit to the factory airbox position

• 4" inlet and 4" outlet for increased airflow

• CNC cut and folded alloy construction

• Powder coated black or polished for durability

• TIG welded by certified Australian tradesmen

• Stainless steel fasteners and pressure plate

• Integrated water drainage port with M8 bolt

Kit Includes

• Radius Fabrications 100 / 105 Series LS1 panel airbox
  

• Aeroflow panel filter

• Stainless pressure plate

• Stainless mounting hardware

• Installation instructions

Note: Piping from the airbox to the engine/turbo is not supplied.

Fitment Information

• Suits Toyota LandCruiser 100 & 105 Series

• Designed for LS1 engine conversions

• Installs in the factory airbox location

• Utilises factory mounting points

• Factory-style routing retained where possible

• Brackets may pick up different factory mounting holes depending on model and year

Installation

• Bolt-in design
  

• Custom intake piping from airbox to engine must be supplied by the installer

• Professional installation recommended for best results

Frequently Asked Questions

Does this airbox suit LS-swapped 100 & 105 Series LandCruisers?

• Yes, this airbox is designed specifically for LS1 conversions.

What type of filter does this airbox use?

• Panel filter design. An Aeroflow filter is supplied with the airbox.

What are the inlet and outlet sizes?

• 4" inlet and 4" outlet.

Does the airbox include piping to the engine?

• No. Piping from the airbox to the engine is not supplied and must be sourced separately.

Does the airbox have a drainage port?

• Yes. The airbox includes an M8 drain bolt.

• We recommend leaving the bolt out for day-to-day driving and installing it for water crossings.

Will this airbox work with an aftermarket snorkel?

• In most cases, yes.

• We recommend sending through details and photos of your snorkel to confirm compatibility.

How does this airbox affect fuel consumption?

• Results vary depending on driving style and vehicle setup.

• Feedback from customers and R&D indicates improved efficiency in some setups due to improved airflow.