3.5" Turbo Back Exhaust System - Toyota Landcruiser 78 Series Troopy VDJ78 4.5L V8 (2016-On) | Outback Exhausts

Premium 3.5" Turbo-Back Exhaust System for Toyota Landcruiser 78 Series Troop Carrier VDJ78 (2016-On)

Unleash maximum performance from your Toyota Landcruiser 78 Series Troop Carrier VDJ78 4.5L V8 turbo diesel (2016-On) with this premium 3.5" stainless steel turbo-back exhaust system. Engineered and manufactured in Australia specifically for the latest generation Troopy, this larger-diameter exhaust delivers exceptional performance gains, improved fuel efficiency, enhanced turbo response, and that deep diesel growl that matches the legendary character of this iconic workhorse.

• Note that this systems is intended for OFF road use only.
• ECU tuning will be required after installation
• IF AFTERMARKET SIDE STEPS ARE FITTED, MODIFICATION OF THE BRACKETS MAY BE REQUIRED

Key Features

• Full 3.5" Turbo-Back System - Larger diameter for maximum flow and performance gains
• Premium Stainless Steel Construction - Built to withstand Australia's harshest conditions
• 3.5" Mandrel Bent Tubing - Consistent diameter throughout for optimal exhaust flow
• Maximum Backpressure Reduction - Allows turbo to spool faster and breathe more efficiently
• 2016+ Troopy-Specific Design - Engineered for the latest VDJ78 chassis and body configuration
• Australian Made - Designed and manufactured locally for Australian vehicles
• 5-Year Warranty - Backed by our comprehensive warranty coverage
• Bolt-On Installation - Direct fit replacement with all necessary hardware

Performance Benefits

Experience dramatic improvements in turbo response, power delivery, and overall drivability with the larger 3.5" diameter system. This turbo-back design significantly reduces exhaust backpressure beyond what smaller systems can achieve, allowing your turbo diesel to breathe completely freely. This translates to faster turbo spool-up, improved throttle response, substantial power and torque gains throughout the rev range, and better fuel efficiency—especially when loaded with gear, passengers, or towing heavy trailers.

Why 3.5" Turbo-Back for Maximum Performance?

The 78 Series Troop Carrier is often heavily loaded with equipment, passengers, and gear for remote touring, mining work, or expedition use. The larger 3.5" diameter provides the absolute maximum flow capacity, eliminating all factory exhaust restrictions from the turbo outlet. The result is maximum power gains, improved EGT (exhaust gas temperature) management under heavy load, better fuel economy during long-distance touring, and enhanced turbo longevity due to minimal backpressure. This is the ultimate exhaust upgrade for serious Troopy operators who demand maximum performance.

Built for Australian Work & Touring

The Troopy is Australia's ultimate workhorse and touring vehicle, and this 3.5" exhaust is engineered to match its legendary toughness while maximizing performance. Whether you're running mine site operations, crossing the Simpson Desert, or kitting out your Troopy for remote expedition work, this exhaust system handles it all. The premium stainless steel construction resists corrosion from salt, mud, and water crossings, while the robust mounting system ensures reliability on the roughest corrugated tracks and harshest conditions.

Fitment Details

• Make: Toyota
• Model: Landcruiser 78 Series Troop Carrier
• Engine: 4.5L V8 Turbo Diesel (VDJ78)
• Years: 2016 - Current
• Configuration: Turbo-Back System (3.5" diameter)
• Weight: 23kg

What's Included

Complete turbo-back exhaust system including all piping from turbo outlet to tailpipe, with all necessary gaskets, and hardware for installation. Professional fitment recommended for optimal results.

Frequently Asked Questions

Will the outback exhaust fit my Landcruiser 78 Series Troop Carrier?

The outback exhaust is specifically designed for Toyota Landcruiser 78 Series Troop Carrier VDJ78 models with the 4.5L V8 turbo diesel engine from 2016 onwards. This will not fit pre-2016 models, other 78 Series variants (single cab, ute), or petrol models.

What's the difference between 3" and 3.5" turbo-back exhausts?

The outback exhaust 3.5" system provides greater exhaust flow capacity than a 3" system, resulting in even lower backpressure and maximum performance gains. The larger diameter is ideal for heavily modified vehicles, those running higher boost levels, or operators who demand absolute maximum performance from their Troopy. For stock or lightly modified vehicles, both sizes deliver excellent results, but the 3.5" provides the ultimate performance potential.

What's the difference between turbo-back and DPF-back exhausts?

A turbo-back exhaust replaces everything from the turbo outlet to the tailpipe, providing maximum performance gains. A DPF-back system retains the factory DPF (Diesel Particulate Filter) and only replaces the exhaust from the DPF back. Turbo-back systems deliver significantly better power, torque, and fuel economy improvements—critical for heavily loaded Troopys used for touring, mining, or expedition work.

How much power and torque gain can I expect from the Outback Exhausts?

While exact gains vary based on vehicle condition and other modifications, customers typically report substantial improvements in turbo response, mid-range torque, and overall power delivery with the 3.5" system. The most significant benefits are improved throttle response, faster turbo spool-up, and noticeably better performance when the Troopy is heavily loaded with passengers and gear or when towing. Many customers also report improved fuel economy, particularly during highway cruising and loaded touring.

How does the outback exhaust sound compared to stock?

You'll notice a deeper, more aggressive diesel tone with enhanced turbo whistle compared to the restrictive factory system. The larger 3.5" diameter provides a fuller, more authoritative sound that matches the Troopy's workhorse character without being excessively loud or causing drone on long highway drives. It provides that classic turbo diesel growl that enthusiasts appreciate, especially under acceleration and boost.

Will the outback exhaust improve my fuel economy?

Yes, many customers report improved fuel economy, particularly during highway cruising and when the vehicle is loaded. The significantly reduced backpressure from the 3.5" system allows the engine to work more efficiently, which can translate to fuel savings of 1-2L/100km or more in real-world conditions. The greatest improvements are typically seen when the Troopy is carrying a full load of passengers and equipment or towing.

What's included in the 5-year warranty?

The Outback Exhaust 5-year warranty covers manufacturing defects and material failures under normal use, including corrosion protection for the stainless steel construction. The warranty covers all exhaust components from turbo to tailpipe. It does not cover damage from accidents, improper installation, modifications, or off-road impact damage.

Is professional installation required for the Outback exhaust system?

Yes, The Outback Exhaust strongly recommend professional installation for this turbo-back system. Proper installation requires removing the factory exhaust from the turbo outlet, ensuring correct gasket sealing at the turbo flange, proper alignment throughout the system (accounting for the Troopy's unique chassis), and secure mounting. Professional installation ensures optimal performance, prevents exhaust leaks, and maintains warranty coverage.

Will the outback exhaust help lower my EGTs (Exhaust Gas Temperatures)?

Yes, the improved exhaust flow and significantly reduced backpressure from the 3.5" system typically result in lower EGTs, particularly under load. This is especially beneficial for Troopys that are often heavily loaded with passengers, equipment, and gear. Many customers report EGT reductions of 50-100°C or more when fully loaded or climbing hills—critical for engine longevity in demanding applications.

Is the Outback exhaust suitable for mine site work and remote touring?

Absolutely. This 3.5" exhaust is specifically engineered for the most demanding applications including mine site operations, remote touring, and expedition use. The improved power and torque delivery makes driving a loaded Troopy significantly easier, while the stainless steel construction and robust mounting system handle corrugated roads, water crossings, and extreme conditions with ease. It's the ultimate upgrade for serious 78 Series Troopy owners and operators who demand maximum performance.

Do you ship Australia-wide and internationally?

Yes, The Outback Exhausts offer nationwide delivery across Australia. Due to the size and weight of this system (23kg), shipping costs vary by location. Metro areas typically receive orders within 3-7 business days, while regional and remote areas may take 7-14 business days. International shipping is also available—contact us for a freight quote to your location.

 

DISCLAIMER: 

This product is intended strictly for off-road racing, ADF or mining vehicles, overseas models exempt from Australian Design Rules (ADR), or vehicles with valid Primary Producer exemptions [1, 2]. 

Installing this product renders the vehicle non-compliant with ADR standards; consequently, it cannot be legally operated on or off-road in Australia unless a specific exemption applies [1, 3]. It is the owner's responsibility to verify regulatory compliance and determine how this modification impacts the vehicle’s warranty and insurance coverage [2, 3]. 

1. Australian Design Rules (ADR)
2. Department of Infrastructure: Vehicle Exemptions
3. Product Liability and Safety Compliance