Nissan Navara D40 2.5L YD25/YS23 3" DPF Back Exhaust System (2008-2015)- Outback Exhausts

Premium 3" DPF-Back Exhaust System for Nissan Navara D40 2.5L YD25/YS23

Upgrade your Nissan Navara D40 2.5L YD25/YS23 with our premium 3" stainless steel DPF-back exhaust system. Engineered and manufactured in Australia specifically for the 2016+ Navara D40 with the 2.5L YD25/YS23 turbo diesel engine, this exhaust delivers improved performance, enhanced sound, and exceptional durability for your workhorse 4x4.

Key Features & Benefits

• Premium 409 Stainless Steel Construction - Superior corrosion resistance for Australian conditions
• 3" Mandrel Bent Tubing - Optimized diameter for the YD25/YS23 engine, maximizes exhaust flow
• Bolt-On Installation - Direct replacement
• DPF-Back Design - Retains factory DPF
• Australian Engineered - Designed and manufactured locally for local conditions
• 5-Year Warranty - Comprehensive coverage for peace of mind
• Improved Performance - Better throttle response, power delivery, and fuel efficiency
• Enhanced Sound - Deep, refined exhaust note without drone
• Resonator Option Available - Optimized sound control for refined, comfortable tone
• Lightweight Design - Only 23kg for improved performance

Vehicle Compatibility

• Fits: Nissan Navara D40 2.5L YD25/YS23 Turbo Diesel (2016 onwards)
• Engine: 2.5L YD25/YS23 4-Cylinder Turbo Diesel
• Configuration: DPF-Back system ( retains factory DPF )
• Models: All D40 Navara variants with 2.5L YD25/YS23 engine including RX, ST, ST-X

Technical Specifications

• Material: 409 Grade Stainless Steel
• Pipe Diameter: 3 inch (76mm)
• Construction: Mandrel bent tubing, MIG welded
• Weight: 23kg
• System Type: DPF-Back with resonator option available
• SKU: OE5620-S

What's Included

• Complete DPF-back exhaust system
• All Gaskets and hardware
• 5-year manufacturer warranty
  

Installation

This is a bolt-on replacement exhaust system designed for straightforward installation. Most customers with basic mechanical skills and tools can install this system in 2-3 hours. Professional installation is recommended for best results. No cutting or welding required - simply remove the factory exhaust from the DPF outlet back and bolt this system in place.

Performance Benefits

The 3" mandrel bent design reduces exhaust back pressure compared to the restrictive factory system. You'll experience improved throttle response, better power delivery throughout the rev range, and enhanced fuel efficiency. The Navara D40's 2.5L YD25/YS23 turbo diesel engine particularly benefits from the improved exhaust flow, with noticeable gains when towing, loaded, or climbing.

Frequently Asked Questions

Will the outback exhaust improve performance on my Navara D40?

Yes, the 3" mandrel bent design reduces exhaust back pressure, resulting in improved throttle response, better power delivery, and enhanced fuel efficiency. Most customers report noticeable improvements in drivability, especially when towing, loaded, or climbing hills. The 2.5L YD25/YS23 engine responds particularly well to improved exhaust flow.

How does the outback exhaust sound?

The outback exhaust produces a deep, refined tone that's noticeably sportier than stock without being overly loud. It enhances the diesel character while remaining comfortable for daily driving, highway cruising, and work use. You'll hear a satisfying growl under acceleration with minimal noise at cruise.

What's included in the 5-year warranty?

The Outback Exhausts 5-year warranty covers manufacturing defects, material failure, and weld integrity under normal use. It does not cover damage from accidents, improper installation, modifications, or extreme abuse. Full warranty terms are included with your purchase.

Do I need to tune my vehicle after installing the outback exhaust?

No tune is required. The outback exhaust works perfectly with the factory ECU calibration and will provide noticeable improvements on its own. However, many customers choose to add a tune later to maximize the performance benefits of improved exhaust flow, especially for towing and heavy-duty use.

How long does shipping take?

Most orders ship within 1-2 business days. Delivery times vary by location: metro areas typically receive orders within 3-5 business days, while regional areas may take 5-7 business days.

Do you ship internationally?

Yes, Outback Exhausts ships internationally to select countries. International shipping costs and delivery times vary by destination. Enter your country and postcode at checkout for accurate freight quotes. Please note that international customers are responsible for any customs duties, taxes, or import fees charged by their country. Contact us for specific international shipping enquiries.

Can I install the outback exhausts myself?

Yes, the Outback exhaust is a bolt-on system designed for DIY installation. You'll need basic hand tools, jack stands or a hoist, and 2-3 hours. However, professional installation is recommended if you're not confident working under your vehicle.

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

A DPF-back system (like this one) replaces the exhaust from the DPF outlet to the rear, retaining the factory DPF and front pipe. A turbo-back system replaces everything from the turbo outlet, including the DPF. 

Will the outback exhausts fit other Navara models like D22 or D23?

No, the outback exhaust system is specifically designed for the Nissan Navara D40 (2016+) with the 2.5L YD25/YS23 engine. It will not fit D22, D23, or other Navara generations, which have different engines and exhaust configurations. Please contact us if you need an exhaust for a different Navara model - we have specific systems for various Navara generations.

Does the outback exhaust improve fuel economy?

Yes, many customers report improved fuel efficiency after installing this exhaust, particularly during highway driving and when maintaining steady speeds. The reduced back pressure allows the engine to work more efficiently. However, actual fuel savings will vary based on driving style, load, and conditions.

Will the outback exhaust rust?

Our 409 stainless steel construction provides excellent corrosion resistance for Australian conditions. While 409 stainless may develop some surface discoloration over time (especially in coastal or high-humidity areas), it will not rust through like mild steel exhausts. This is why we can confidently offer a 5-year warranty.

Can I use the outback exhaust for towing?

Absolutely! The outback exhaust is ideal for towing applications. The improved exhaust flow reduces back pressure, which helps the engine breathe better under load. Many customers specifically upgrade their exhaust to improve towing performance, and the Navara D40's 2.5L YD25/YS23 engine responds particularly well to the reduced restriction when pulling heavy loads up to the Navara's 3.5-tonne towing capacity.

What is the YD25/YS23 engine?

The YD25/YS23 designation refers to Nissan's 2.5L 4-cylinder turbo diesel engine used in the 2016+ Navara D40. This engine features modern common rail fuel injection technology for improved performance, fuel efficiency, and reduced emissions. The YD25/YS23 responds well to exhaust upgrades.

Ready to upgrade your Navara D40?

Order now and experience the Outback Exhausts difference. Australian made, backed by our 5-year warranty, and ready to ship Australia-wide and internationally.