Airboxes and intercoolers.
More air in, and cooler air going into the engine. Airbox, intake and intercooler upgrades for tuned diesels, fitted in our Legana workshop just north of Launceston and checked on the dyno.
More air, and cooler air.
A tuned diesel wants more air than the factory airbox and intake were built for. Hot intake air costs power and pushes exhaust temperatures up, and you feel it most when you're towing. Factory airboxes can also let in dust around plastic sealing surfaces, Aluminum upgraded airboxes improve this sealing surface and help with letting dust into the engine.
For LandCruisers, Hiluxes and Prados, Just Autos make their own airbox, intake, intercooler and fan kit upgrades, and we fit them here. For other models we fit intercooler upgrades on their own.
Why intake temperature matters.
A turbocharger compresses the air before it enters the engine. This compression increases the air temperature. The intercooler sits between the turbo and the engine, cooling the compressed air before it enters the combustion chamber. Cooler air is denser, meaning more oxygen can enter the engine allowing more fuel to be burned and producing more power
That matters more once a vehicle is tuned. A remap asks the turbo for more boost, which means hotter air, and a factory intercooler sized for standard power can run out of room on a long climb with a van behind you. Once the intake air gets too hot, the engine makes less power and exhaust temperatures climb.
A bigger intercooler, or fans moving more air through the cooling stack, keeps intake temperatures steadier while the vehicle is working hard. The power you see on the dyno is still there halfway up the hill.
The airbox and intake.
The airbox and intake pipe are where the engine draws its air from. Factory systems are built to be quiet and cheap to make, and on a tuned engine they can become the restriction. A free flowing airbox and a larger intake pipe let the turbo breathe more easily.
Filtration still comes first, especially if you spend time on dusty gravel roads. That's why the airbox upgrade is often paired with a snorkel, which draws cleaner, cooler air from roof height.
Fitted and tuned together.
Intake and intercooler upgrades do the most when the tune is set up around them. We fit the parts, then check the vehicle on our 4WD roller dyno so you see the result on a power sheet. More on how we tune is on the dyno tuning page.
If your vehicle has already been tuned or modified, tell us what's been done and we'll work out what goes with it.
Which vehicles.
Just Autos upgrades are available for the LandCruiser 300, LandCruiser 200, 70 Series V8, 70 Series 2.8, Hilux and Prado 250.
For the Isuzu D-Max and Mazda BT-50, the Amarok and other common-rail diesels, ask us about an intercooler upgrade for your model.
What we fit.
Airbox and intake pipe
A freer-flowing airbox and a larger intake pipe to go with a tune, including the Just Autos upgrades for LandCruisers, Hiluxes and Prados.
Intercooler upgrades
A bigger intercooler to bring intake temperatures down under load. Just Autos intercoolers for Toyotas, and upgrades for other models too.
Fan kits
Heat exchanger and fan kits for extra cooling when the vehicle is working hard, including the Just Autos kits.
Airboxes and intercoolers questions.
Do you fit intercooler upgrades?
Yes. We fit Just Autos intercooler and fan kit upgrades for LandCruisers, Hiluxes and Prados, and intercooler upgrades for other models too. Send us your make and model and we'll tell you what's available.
Do I need a tune with an intercooler upgrade?
Not always. An intercooler upgrade on its own brings intake temperatures down, but you get the most from it when the tune is set up to use the cooler air. Tell us what's already been done and we'll recommend what suits.
Will a bigger intercooler help when towing?
That's where it helps most. Long climbs with a van or trailer behind you are when a factory intercooler heats up, and a larger intercooler or fan kit keeps intake temperatures steadier.
How do I get a price?
Send us a quote request with your vehicle, rego and what you're after, or call Shane on 0407 287 264. We don't list prices on the website because every vehicle and set-up is different. We'll reply within 1–3 business days.