Turbo Back Exhaust - 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
• Premium Stainless Steel Construction
• 3.5" Mandrel Bent Tubing
• Maximum Backpressure Reduction
• 2016+ Troopy-Specific Design
• Australian Made
• 5-Year Warranty
• Bolt-On Installation

Fitment Details

• Make: Toyota
• Model: Landcruiser 78 Series Troop Carrier
• Engine: 4.5L V8 Turbo Diesel (VDJ78)
• Years: 2016 - Current

What's Included

Complete turbo-back exhaust system including all piping from turbo outlet to tailpipe, with all necessary gaskets (except turbo gasket), and hardware for installation.

Frequently Asked Questions

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.

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.

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.

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