2.5" Turbo Back Exhaust System - Mitsubishi Pajero NJ NK NL 2.8L 4M40 (1993-1997) | Outback Exhausts

Premium 2.5" Turbo Back Exhaust System for Mitsubishi Pajero NJ, NK, NL 2.8L 4M40 (1993-1997)

Revitalize your classic Mitsubishi Pajero with our Australian-made 2.5" turbo back exhaust system. Precision-engineered for the legendary 2.8L 4M40 turbo diesel engine in NJ, NK, and NL series Pajeros (1993-1997), this premium stainless steel exhaust delivers enhanced performance, improved sound, and legendary durability for your iconic 4x4.

Key Features & Benefits

• 2.5" Mandrel Bent Design - Optimized exhaust flow for maximum power and torque gains
• Premium Stainless Steel Construction - Superior corrosion resistance for harsh Australian conditions
• Turbo Back System - Complete replacement from turbo to tailpipe for optimal performance
• Bolt-On Installation - Direct fit with all mounting hardware included
• 5-Year Warranty - Backed by our comprehensive Australian warranty
• Australian Made - Designed and manufactured for Aussie conditions
• Perfect for Classic 4x4s - Restore performance to your heritage Pajero

Performance Improvements

Experience noticeable gains in throttle response, reduced exhaust gas temperatures, and improved fuel efficiency. The 2.5" diameter and mandrel bent construction eliminate restrictive bends, allowing your classic Pajero to breathe freely and perform at its best whether you're touring the outback, towing, or tackling tough terrain.

Sound Profile

Enjoy a deep, purposeful diesel tone that's refined yet characterful - not overly loud for long-distance touring, but with enough presence to remind you of the legendary 4M40 engine's capability. Perfect for a classic 4x4 enthusiast.

Fitment Specifications

• Make: Mitsubishi
• Model: Pajero NJ, NK, NL Series
• Engine: 2.8L 4M40 Turbo Diesel
• Years: 1993 - 1997
• System Type: Turbo Back (complete system)
• Pipe Diameter: 2.5 inch (63.5mm)
• Material: Stainless Steel
• Weight: 23kg
• SKU: OE3408-S

What's Included

• Complete turbo back exhaust system
• All necessary mounting hardware and gaskets (excluding turbo gasket)
• 5-year manufacturer warranty

Frequently Asked Questions

Will the outback exhaust fit my Mitsubishi Pajero?

This outback exhaust is specifically designed for Mitsubishi Pajero NJ, NK, and NL series models with the 2.8L 4M40 turbo diesel engine manufactured between 1993 and 1997. Earlier NJ models have slightly different bracketry. we have only had one example of this where the customer was  easily able to modify the brackets to suit

How difficult is the installation of the Outback Exhausts system? Can I fit it myself?

This outback exhaust is a bolt-on system designed for straightforward installation. If you're mechanically inclined with basic tools and a vehicle hoist or jack stands, you can install it yourself in 3-4 hours. However, we recommend professional installation to ensure proper fitment and optimal performance. All mounting hardware and instructions are included.

What performance gains can I expect from my classic Pajero?

Most customers report noticeable improvements in throttle response, reduced turbo lag, lower exhaust gas temperatures (EGTs), and modest fuel economy gains (typically 0.5-1.5L/100km depending on driving conditions). You'll also experience better towing performance and a more responsive engine - breathing new life into your classic 4M40 engine.

How loud is the outback exhaust compared to the factory system?

The outback exhaust 2.5" turbo back system produces a deeper, more purposeful note than the factory exhaust, but it's not excessively loud. It's refined enough for comfortable long-distance touring and daily driving, while still giving your classic Pajero a characterful diesel sound under acceleration. It's the perfect balance for a heritage 4x4.

What's covered under the 5-year warranty?

The outback exhaust 5-year warranty covers manufacturing defects, material failures, and weld integrity under normal use conditions. This demonstrates our confidence in the quality and durability of our Australian-made stainless steel construction. Warranty details are included with your purchase.

Will the outback exhaust rust or corrode on my older Pajero?

Outback exhausts are constructed from premium 409 grade stainless steel specifically chosen for its superior corrosion resistance. This material is ideal for Australian conditions including coastal environments, outback dust, and harsh weather. Even on a classic 1990s Pajero, your new exhaust will maintain its appearance and performance for many years with proper care.

Is the outback exhaust suitable for towing with my Pajero?

Absolutely! The improved exhaust flow reduces back pressure and lowers EGTs, which is particularly beneficial when towing heavy loads. Many classic Pajero owners who regularly tow caravans or trailers report improved performance and reduced strain on the 4M40 engine with our turbo back system installed.

Do you ship Australia-wide? What about international orders?

Yes, Outback Exhaust ships throughout Australia with fast, reliable freight services. We also offer international shipping for select products. Shipping costs are calculated at checkout based on your location. For large or remote area deliveries, please contact us for a freight quote.

Why is the pipe diameter 2.5" instead of 3" like newer models?

The outback exhaust 2.5" diameter is specifically engineered for the 2.8L 4M40 engine's displacement and turbo characteristics. This size provides the optimal balance of exhaust velocity and flow for maximum performance gains without sacrificing low-end torque. Oversizing the exhaust can actually reduce performance on smaller displacement engines.

Ready to restore performance to your classic Mitsubishi Pajero?

Order now and experience the Outback Exhausts difference with our premium 2.5" turbo back system designed specifically for your heritage 4x4.