
Reach us here or email info@4x4downunder.com.au
Boss Extreme Series Airbags are built tough, with a rating of 2500lb (1136kg) per side and tested to handle pressures over 750psi, backed by government approval.
All Boss airbags are manufactured in-house and proudly carry the Boss brand, ensuring you get top-quality performance. Be cautious of unbranded airbags, which are often imported from China and may not meet the same standards.
For the average dual cab ute, you can expect to run 15-45psi depending on your load. With over 13,000 load assist kits sold across Australia, our airbags have proven their reliability with 4WD enthusiasts, mining companies, tradies, tour operators, and more. They’re also used in agricultural vehicles, trailers, and motorhomes—the possibilities are endless.
To achieve the best performance, inflate your airbags just enough to keep your vehicle at a level ride height. This helps distribute the load across all suspension components, avoiding unnecessary strain on any single part of your suspension system.
We're Australians, and we like to support our fellow Australians, which is why all our products are sourced locally from the official Australian distributors. Nothing is imported directly and we don't stock any grey imports. This also means that all manufacturer warranties are fully honored by the brands themselves.
Very fast service and product as advertised high quality to
Staff replied no need to contact down under wish all services were that hassle free thank you I will be back when I need more equipment
Works great
Beefy, practical, small enough to fit behind the number plate. Awesome!
awesome bit of gear. exceeded expectations
Great product many thanks to down under for their terrific service
Thanks for the great feedback Peter!