LS conversions in Toyota LandCruiser 100 and 105 Series models have become increasingly popular across Australia. With more power and improved torque, an LS swapped Cruiser delivers serious performance for touring, towing and off road use. However, airflow and filtration must match the upgraded engine to ensure long term reliability.
At Radius Fabrications, we have developed a purpose designed panel airbox specifically for LS1 converted 100 and 105 Series LandCruisers. Engineered for strong airflow, effective dust control and clean installation, this airbox is built for Australian conditions. Full product details are available at https://radiusfabrications.com.au/products/105-series-airboxes.
Designed Specifically For LS1 Swapped 100 And 105 Series LandCruisers
Our 100 and 105 Series LS1 conversion airbox is not a modified factory unit. It has been designed from the ground up to suit LS swapped setups where intake demand is significantly higher than standard.
This airbox runs a panel filter design, providing excellent surface area for filtration while maintaining strong airflow. For vehicles used in dusty touring environments, surface area and sealing are critical. A panel filter allows consistent airflow while protecting the engine from fine dust and debris.
The airbox mounts directly into the factory airbox location. This ensures a tidy and professional installation without unnecessary fabrication. For many builders and owners, retaining a clean engine bay layout is just as important as performance.
Learn more about fitment and specifications at https://radiusfabrications.com.au/products/105-series-airboxes.
4 Inch Inlet And Outlet For Increased Airflow
LS powered setups require efficient intake flow. Our 100 and 105 Series airbox features a 4 inch inlet and 4 inch outlet to support increased airflow demands.
This design helps reduce restriction compared to factory arrangements, supporting smoother engine breathing under load. Whether you are towing a caravan, driving long distances or tackling remote tracks, consistent airflow contributes to stable engine performance.
An Aeroflow panel filter is supplied with each airbox, providing reliable filtration from a recognised performance brand. While piping from the airbox to the engine is not included, this allows flexibility depending on your specific LS conversion layout.
Full details and ordering information can be found at https://radiusfabrications.com.au/products/105-series-airboxes.
CNC Cut Alloy Construction With Australian Craftsmanship
Every 100 and 105 Series LS1 airbox is CNC cut and folded from alloy before being TIG welded by certified Australian tradesmen. We use stainless steel fasteners and a stainless pressure plate to ensure durability and corrosion resistance.
Customers can choose a powder coated black finish or a polished option to suit their build style. Regardless of finish, the focus remains on structural integrity and long term reliability.
Each unit includes an integrated water drainage port with an M8 bolt. For everyday driving, many owners leave the bolt out to allow natural drainage. For water crossings, the bolt can be installed to assist with sealing. This practical feature reflects real world touring experience and ongoing research and development within our workshop.
Compatible With Aftermarket Snorkels
In most cases, our LS1 conversion airbox will work with aftermarket snorkels. We recommend sending through details and photos of your snorkel so we can confirm compatibility before installation.
Proper alignment between snorkel and airbox is essential for maintaining sealing and airflow efficiency. Our team reviews fitment information carefully to ensure your setup performs as intended.
Built For Australian Conditions And Proven Through Experience
At Radius Fabrications, we specialise in intake systems designed for demanding applications. Our experience working with LS conversions and touring vehicles allows us to create solutions that balance airflow, filtration and durability.
Feedback from customers and our own research and development has indicated improved efficiency in some setups due to better airflow. Results vary depending on driving style and overall vehicle configuration, but the goal remains the same: reliable, consistent performance.
If you are completing an LS1 conversion in your 100 or 105 Series LandCruiser and want a purpose built intake solution, visit https://radiusfabrications.com.au/products/105-series-airboxes and contact us with your vehicle details.