Premium 3.5" DPF 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 DPF 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.

• IF AFTERMARKET SIDE STEPS ARE FITTED, MODIFICATION OF THE SIDE STEP BRACKETS MAY BE REQUIRED

Key Features

• 3.5" DPF Back System
• Premium Stainless Steel Construction
• 3.5" Mandrel Bent Tubing
• Optimum 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 DPF back exhaust system including all piping from DPF outlet to tailpipe, with all necessary gaskets, and hardware for installation.

Frequently Asked Questions

What's the difference between 3" and 3.5" DPF 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.

What's included in the 5-year warranty?

The Outback Exhaust's 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 DPF back 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 recommend professional installation for this DPF back system. Proper installation requires removing the factory exhaust from the DPF outlet, 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.