How a Performance Exhaust System Transforms Your Vehicle

Your factory exhaust gets the job done, but it was never built with performance in mind. A well-chosen upgrade changes the way your 4WD drives, sounds, and holds up over time.

Whether you’re after a simple exhaust modification or a full custom exhaust, Torqit builds performance exhaust systems designed specifically for demanding 4WD conditions.

Have a look through our stainless performance exhaust systems for a full physical upgrade, or check out the electronic exhaust range if you want a fully adjustable exhaust note without altering your factory system.

What Does a Performance Exhaust System Actually Do?

A performance exhaust moves gases out of the engine more freely than a stock system. Less resistance means your engine doesn’t work as hard to breathe, which shows in how your 4WD performs.

It also helps manage exhaust gas temperatures, which climb when you’re towing, working a diesel hard, or spending time in low range. Keeping EGTs down means less strain on your engine over the long run.

The Benefits of a Performance Exhaust Upgrade

Performance exhaust systems affect more than just how your 4WD sounds. Here’s what a well-matched upgrade can do for you:

• More usable power and torque, not just numbers on a dyno sheet
• Better fuel efficiency on long tows and highway runs
• Lower exhaust gas temperatures when you’re working the engine hard
• Sharper throttle response when you need it most
• A drive note that suits your rig, not the factory default
• Built to handle Aussie conditions without corroding or cracking

These benefits add up differently depending on how you drive, which is why the right exhaust modification looks different from one 4WD owner to the next.

What Sets a Torqit Exhaust Modification Apart

As custom exhaust specialists, Torqit designs and builds every exhaust modification in house, rather than relabelling someone else’s parts.

• 304 grade stainless steel, with Titanium coated dump pipes on pre-DPF vehicles to help control heat
• Mandrel bent up to 2.0mm wall thickness for smoother flow and a longer life
• Rolled end mufflers and 10mm laser cut flanges, welded inside and out for extra strength
• High flow diesel specific catalytic converters built to handle diesel pressures and temperatures
• Fully bolt together kit, designed to work in harmony with Pedal Torq and Power Module

Every Torqit exhaust modification also carries its own 10 year product warranty, so you’re covered well beyond the first few years on the road.

Exhaust Modifications: What Are Your Options?

Not every custom exhaust needs to be a full turbo back system. Torqit’s range covers a few different approaches, depending on how much of the exhaust you want to replace.

Cat-Back Exhaust

A cat-back exhaust replaces everything from the catalytic converter to the tailpipe. It’s a simpler exhaust modification that still lifts flow and sound without touching the front half of the system.

Engine-Back Exhaust

An engine-back exhaust replaces the entire exhaust system from the engine back on naturally aspirated vehicles. Depending on the vehicle, this can include exhaust headers, the catalytic converter where required, and the remaining exhaust system through to the tailpipe.

Turbo-Back Exhaust

A turbo-back system replaces the exhaust from the turbo all the way to the tip. It’s the biggest exhaust modification you can make, and delivers the most noticeable gains in flow, power, and sound.

DPF-Back Exhaust

A DPF-back exhaust keeps your factory diesel particulate filter in place and upgrades everything downstream. It’s the right custom exhaust option if your 4WD needs to retain its emissions equipment.

The right choice comes down to how you use your 4WD, and how much of a change you want in power, sound, and efficiency.

Is an Exhaust Upgrade Right for Your 4WD?

If you’re towing, running long highway distances, or spending time in low range off road, a performance exhaust upgrade is worth considering.

Towing and Heavy Loads

Towing puts more strain on your engine, and a performance exhaust helps it breathe easier under that extra load, especially on long inclines.

Off-Road and Low Range

Low range work means longer periods of hard engine load at low speed. A well-matched exhaust modification helps keep things cooler and more responsive out on the tracks.

Long Highway Runs

Highway driving is where the fuel efficiency gains from a performance exhaust tend to show up the most, especially over longer distances.
It won’t turn your 4WD into something it’s not, but it can make the driving experience noticeably better suited to how you actually use your vehicle.

Exhaust Modifications and Australian Regulations

comes to emissions equipment and noise limits. Rules vary, so it pays to check before you commit.

This is where choosing the right Torqit exhaust system matters. The right setup will depend on your vehicle, its factory emissions equipment, and the regulations that apply in your state.

If your 4WD needs to keep its factory emissions equipment, a DPF-back exhaust modification lets you upgrade everything downstream without touching compliance.

Frequently Asked Questions

Will a performance exhaust make my 4WD louder?

Some increase in exhaust note is normal, but a well-designed system won’t be excessively loud. Torqit exhausts are built to sound purposeful, not obnoxious, whether you’re cruising or under load.

Will an exhaust modification improve fuel economy?

It can. Reduced backpressure means your engine doesn’t have to work as hard, which can translate to better fuel efficiency, especially under load or on longer highway runs.

Is it legal to modify my exhaust in Australia?

It depends on your state and what you’re changing. Emissions equipment and noise limits are the main things to check before modifying your exhaust, so speak to a specialist if you’re unsure.

Should I get my custom exhaust installed by a specialist?

Torqit exhausts are a bolt together kit, so you can fit it yourself or have a local stockist or specialist install it, whichever suits your setup.

Will a new exhaust affect my vehicle’s warranty?

A quality performance exhaust from a reputable brand shouldn’t void your whole vehicle warranty. Torqit exhausts also carry their own 10 year product warranty.

What type of exhaust modification is right for my 4WD?

The right exhaust modification depends on your vehicle and its factory setup. Naturally aspirated vehicles may suit a cat-back or engine-back exhaust, while turbocharged vehicles can have different requirements depending on their emissions equipment.

For diesel 4WDs fitted with a DPF, a DPF-back exhaust can upgrade the system downstream of the filter while keeping the factory DPF in place.

Can I still upgrade my exhaust if my 4WD has a DPF?

Yes. A DPF-back exhaust modification keeps your diesel particulate filter in place and upgrades the exhaust from that point back, so you stay compliant.

Ready to find the right exhaust modification for your 4WD? Find a Torqit dealer near you to talk through your options.