Outback Exhausts 3.5″ DPF Back for Landcruiser 79 Series GDJ79 offers a durable, full-stainless bolt-on exhaust upgrade — improving flow, sound, and reliability for touring, towing or off-road use.
This Australian-made 3.5″ DPF-back exhaust system from Outback Exhausts suits the Toyota Landcruiser 79 Series GDJ79 2.8 L, covering both Single and Double Cab models from 10/2024 onwards. Outback Exhausts builds the system from durable 409 stainless steel and uses precision mandrel bends to improve flow, sharpen throttle response and deliver a cleaner exhaust note. The system retains the factory diesel particulate filter for full compliance. Because it mounts directly to the rear of the DPF and follows the OEM routing, most installers can complete the job without cutting or welding.
Outback Exhausts engineers their systems for harsh Australian conditions, so the upgrade suits touring, towing and long-distance travel. The 3.5″ pipework reduces backpressure and helps the 2.8 L engine breathe more efficiently without altering emissions equipment. Each kit includes all pipes, brackets and hardware required for a complete installation, allowing owners to fit the system with confidence.
Key Features
3.5″ DPF-back exhaust for Toyota Landcruiser 79 Series GDJ79 2.8 L.
Australian-made 409 stainless steel for long-term durability.
Mandrel-bent tubing for consistent internal diameter and smoother flow.
Bolt-on installation that uses factory mounting points.
Includes all fitting hardware and robust brackets.
Backed by a 5-year system warranty.
Improves flow and produces a deeper note while retaining the OEM DPF.
Specifications
Vehicle: Toyota Landcruiser 79 Series GDJ79
Engine: 2.8 L turbo diesel with DPF
Year Range: 10/2024 onwards
System Type: 3.5″ DPF-back
Material: 409 stainless steel
Part Number: OE4670-S35
What’s in the Box
Engine pipe (DPF connection)
First connecting pipe
Second connecting pipe
Muffler pipe or pipe-only section
Tail pipe section
Complete fitting kit
Compatibility
Suits Toyota Landcruiser 79 Series GDJ79 2.8 L.
Fits both Single and Double Cab models.
Designed for vehicles retaining the factory DPF in the OEM position.
Ideal for touring and towing where improved exhaust flow offers real benefits.
Delivery & Lead Times
Outback Exhausts manufactures all systems in Australia, and certain configurations may require build time depending on production schedules. We ship large systems in multiple cartons to meet freight size rules and protect each section during transport. Deliveries to commercial addresses usually move faster and provide more reliable tracking. Remote areas may incur additional freight costs. Please note that exhaust systems cannot ship to PO Boxes, and all shipments require a signature on delivery.
Professional Fitting Service on the Sunshine Coast
Sunshine Coast Diesel Tuning offers professional installation for all Outback Exhaust systems. Our technicians ensure correct clearance, alignment and mounting, which prevents rattles, leaks and premature wear. We can also combine installation with performance upgrades or towing setup advice to help you maximise the capability of your GDJ79.
