When it comes to upgrading your 4x4, Aussies know that quality, durability, and performance are key. Whether you're tackling the harsh outback, exploring beach tracks, or just looking for a more capable rig, the right upgrades can make all the difference.
At BAW Automotive, we live and breathe 4x4s, so we’ve put together answers to the 10 most common upgrade questions we get asked. If you're considering modifying your vehicle, this guide will help you make the right choices.
1. What’s the first upgrade I should do to my 4x4?
It depends on what you want from your setup, but suspension and GVM upgrades is usually the best place to start. A quality kit will improve clearance, handling, and ride comfort—especially when carrying loads or towing. If you're heading off-road often, all-terrain or mud-terrain tyres should be high on your list too.
We assess how you use your vehicle before recommending upgrades. For example, if you're doing long touring trips, suspension and storage solutions might be the priority. If you're tackling extreme off-road trails, lockers and underbody protection could come first.
2. Do I really need a GVM upgrade?
If you’re adding bull bars, winches, roof racks, bigger tyres, or carrying loads like camping gear, tools, or a caravan, your vehicle can quickly exceed its legal Gross Vehicle Mass (GVM). Not only is this unsafe, but it can also void your insurance and warranty.
A GVM upgrade is a must if you're kitting out your rig for long trips or heavy-duty use. We offer engineered and certified solutions so you stay compliant with Australian road laws and your vehicle remains insurable.
3. What’s better: all-terrain or mud-terrain tyres?
It depends on where you drive most.
All-Terrain (A/T) Tyres: A balanced option for both highway and off-road use, with better tread life and fuel economy.
Mud-Terrain (M/T) Tyres: Designed for hardcore off-road conditions—better grip in mud, sand, and rock but noisier on highways and less fuel-efficient.
We look at how you drive. If you’re touring and doing light off-roading, A/Ts are the way to go. If you're serious about off-road challenges, M/Ts are worth the investment.
4. Do I need a dual battery system for my 4x4?
If you’re running a fridge, camp lights, or charging devices while camping, then yes—a dual battery system is essential. It prevents your starter battery from going flat and ensures you have power when off-grid.
We fit lithium, AGM, or lead-acid systems tailored to your power needs. We also recommend (delete DC-DC chargers and) solar panels if you want to run your fridge whilst stationary for more than 3 days.
5. Will a snorkel actually help my 4x4?
A snorkel isn't just for deep water crossings—it raises your air intake, keeping dust, water, and debris out of your engine.
In dusty Aussie conditions, a quality snorkel (preferably a sealed one) will extend engine life and improve performance. We recommend Safari snorkels, depending on your setup.
6. Should I install a winch on my 4x4?
If you go off-road alone or in remote areas, a winch is one of the best recovery tools you can have. It allows you to self-recover in sticky situations.
A synthetic rope winch is lighter and easier to handle, while steel cable is more durable in extreme conditions. We only fit reliable, high-quality winches that won’t let you down when you need them most.
7. Are aftermarket diffs or lockers worth it?
Lockers help maintain traction when one wheel lifts off the ground or loses grip, making a huge difference in tough terrain.
Front lockers improve steering control on technical climbs.
Rear lockers are great for soft sand, mud, and ruts.
If you love hardcore off-roading, diff lockers are one of the best upgrades. For touring setups, an LSD or traction control system might be enough.
8. How much lift should I get for my 4x4?
The most common lift sizes are 2-inch and 4-inch.
2-inch lift – The best all-rounder for daily driving and off-road use. Keeps handling safe and legal.
4-inch lift – Gives more clearance for bigger tyres but may require engineering approval in some states.
We match your lift to your driving style, load requirements, and state regulations to ensure your setup is both safe and legal.
9. How do I increase the power and fuel efficiency of my 4x4?
A performance tune, stand alone ECU, exhaust upgrade, and better air intake can improve power and efficiency.
ECU tuning or Stand Alone ECU after unlocks better torque and throttle response.
Upgraded exhaust systems improve airflow, reduce backpressure, and enhance fuel economy.
Intercoolers and thermofans help turbo-diesel engines run more efficiently and last longer.
We customise performance upgrades based on your driving needs, towing requirements, and fuel efficiency goals.
10. What’s the best way to set up a 4x4 for touring?
A proper touring setup should include:
✔ Suspension & GVM upgrade – Handles extra weight.
✔ Dual battery system – Keeps your fridge and devices powered.
✔ Long-range fuel tank – Extends your driving range.
✔ Drawer & storage system – Organises your gear.
✔ Bull bar & winch – Adds front-end protection and recovery options.
✔ UHF radio & Starlink – Essential for remote travel.
We create tailored touring builds for your specific trips, ensuring reliability and comfort on long adventures.
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