Turbo Back Exhaust Systems

A turbo back exhaust replaces the entire system from the turbo outlet to the tailpipe — dump pipe, mid-section, muffler and tip. It is the most complete exhaust upgrade available for a turbocharged vehicle, and the reason it outperforms a cat back is simple: it removes restriction at the source rather than halfway down the system.

DEA Performance manufactures turbo back exhaust systems in Melbourne for diesel 4x4 and performance vehicles, with applications across Hilux, Ranger, Navara, LandCruiser, Patrol, Triton, Colorado, D-Max and BT-50.

Turbo Back vs Cat Back — What's the Difference?

A cat back exhaust starts behind the catalytic converter. A turbo back exhaust starts at the turbo, so it includes the dump pipe as well as everything a cat back covers. On a turbo diesel, that dump pipe section is where most of the factory restriction sits, which is why a turbo back system delivers noticeably better spool and throttle response than a cat back on the same vehicle.

	Cat Back	Turbo Back
Starts at	Behind the catalytic converter	Turbo outlet
Includes dump pipe	No	Yes
Typical gain	Sound and moderate flow	Flow, spool and throttle response
Best suited to	Naturally aspirated and mild builds	Turbo diesel 4x4 and performance builds

For a longer read on the differences, see our guide to cat back vs turbo back exhausts.

Choosing the Right System for Your Build

Pipe size

3 inch suits most diesel 4x4 applications and is the size we build the majority of our systems in. 3.5 inch is worth considering on higher-output builds, though on a stock tune a larger pipe can cost you low-down response.

DPF-equipped vehicles

Fitment differs between DPF and non-DPF models, and on later vehicles the correct system depends on which the vehicle was built with. Check your build date before ordering, or call our team on 03 9793 9916 and we will confirm the right system for your vehicle.

Material

Aluminised steel keeps the cost down; 409 stainless lasts longer in Australian conditions. Coastal and heavy off-road use is where stainless pays for itself.

Shop Turbo Back Exhausts by Vehicle

Turbo Back Systems

DPF Delete Turbo Back Systems

Can't see your vehicle? Browse all turbo back exhaust systems below, or get in touch and we will point you to the right fit.

Turbo Back Exhaust FAQs

Will a turbo back exhaust add power?

Yes. By replacing the restrictive factory dump pipe and exhaust with mandrel-bent piping, a turbo back system lets the turbo breathe more freely, which improves spool and throttle response. Actual gains vary by vehicle, pipe size and whether the vehicle is tuned afterwards, so treat any single horsepower figure with caution.

Is a turbo back exhaust legal in Australia?

It depends on the configuration. Systems that retain the catalytic converter and stay within your state's noise limits are road legal. Systems that remove or bypass emissions equipment, including DPF delete systems, are not legal for road use in Australia and are supplied for off-road, competition and export applications only. Check your state's requirements before you buy, and see the individual product page for the applicable notice.

Do I need a tune after fitting?

Not always. A standard turbo back system will run without a tune on most vehicles, though tuning lets you take full advantage of the extra flow. Some systems — the Navara D40 auto and several DPF delete systems among them — do require tuning after fitment, and this is noted on the product page.

How long does fitting take?

Most turbo back systems are a two to three hour job for a competent workshop. We fit in-house at our Dandenong workshop — call 03 9793 9916 to book.

How Do Turbo Back Exhaust Systems Work?

Exhausts are the lungs of your vehicle.

These systems are responsible for routing exhaust gases away from the engine, improving engine efficiency, and minimising harmful emissions. A well-designed exhaust system can contribute to better power delivery, fuel efficiency, and sound quality.

Basic systems operate as follows:

1. The exhaust gases from the engine first funnelling through restrictive cast iron manifolds (which can be replaced with extractors).

2. The gases then continue their journey through the engine pipe and encounter the catalytic converter, transforming harmful gases into safer emissions.

3. The gases then pass through a resonator, commonly known as a centre muffler.

4. The connecting pipe takes the gases to the rear muffler, which helps to muffle the engine's noise by redirecting and cancelling out sound waves.

5. The final destination for the gases is the tailpipe, where they are expelled from the vehicle.

Turbo back exhaust systems differ from the typical exhaust systems, in many cases acting as a replacement for multiple elements (such as the catalytic converter), with the goal of optimising power.

How Can a Turbo Back Exhaust Improve Your Vehicle?

Upgrading to a turbo back exhaust can add several optimisations to your vehicle’s overall performance. These include:

Turbocharger Integration: These systems are optimised to work seamlessly with turbochargers. They harness the exhaust energy to drive the turbocharger, further boosting power and performance.
Increased Horsepower and Torque: Turbo back exhaust systems feature a free-flowing design that reduces restrictions, allowing exhaust gases to exit the engine more efficiently. This decrease in backpressure results in increased horsepower and torque.
Enhanced Sound: Turbo back exhaust systems are an alternative type of exhaust, replacing elements typically found in catback exhausts. With exhaust gases travelling efficiently throughout your system, your vehicle delivers a more aggressive, cleaner exhaust note.

Find Premium Turbo Back Exhausts at the Best Prices With DEA Performance

There’s a reason why customers keep coming back. Four of them in fact.

Extensive Selection
Competitive Prices
Uncompromising Quality
Expert Guidance

Our team of experts is here to provide you with advice and support every step of the way. We have decades of experience within the automotive industry and will help you find exactly what your vehicle needs to achieve peak performance.

Browse our selection today, or contact our specialists for more information.

Frequently Asked Questions

What is a turbo back exhaust?

A turbo back exhaust is an exhaust system that replaces the exhaust from the turbo outlet back. It is a more complete upgrade than a cat back exhaust and can help improve exhaust flow, sound and overall performance.

Will a turbo back exhaust improve performance?

Depending on the vehicle and setup, a turbo back exhaust can help improve exhaust flow, reduce restriction and support better engine response. Results can vary between vehicles and modifications.

How do I choose the right turbo back exhaust for my vehicle?

Choose a system based on your vehicle make, model, year, engine and whether it has a DPF. Checking the product fitment details is the best way to make sure the exhaust suits your vehicle.

Do turbo back exhausts suit diesel 4x4s?

Yes, turbo back exhausts are a popular upgrade for many diesel 4x4s. Fitment can vary depending on the vehicle, engine and whether it is fitted with a DPF, so always check the product details before ordering.

Turbo Back Exhaust Systems