3" Turbo Back Exhaust System - Isuzu MU-X 3.0L 4JJ1 (2012-2016) | Outback exhausts

Premium 3" Turbo Back Exhaust System for Isuzu MU-X 3.0L 4JJ1 (2012-2016)
Transform your Isuzu MU-X with our Australian-made 3" turbo back exhaust system. Precision-engineered for the 3.0L 4JJ1 turbo diesel engine (2012-2016 models), this premium stainless steel exhaust delivers enhanced performance, improved sound, and unmatched durability for your 7-seater SUV.
Key Features & Benefits
- 3" 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
- In Stock & Ready to Ship - No waiting, no delays
Performance Improvements
Experience noticeable gains in throttle response, reduced exhaust gas temperatures, and improved fuel efficiency. The 3" diameter and mandrel bent construction eliminate restrictive bends, allowing your MU-X to breathe freely and perform at its best whether you're towing the caravan, touring with the family, or tackling weekend adventures.
Sound Profile
Enjoy a deep, refined diesel tone that's sophisticated yet purposeful - not overly loud for family trips and daily commutes, but with enough character to enhance the driving experience. Perfect for a premium 7-seater SUV.
Fitment Specifications
- Make: Isuzu
- Model: MU-X
- Engine: 3.0L 4JJ1-TC Turbo Diesel
- Years: 2012 - 2016
- System Type: Turbo Back (complete system)
- Pipe Diameter: 3 inch (76mm)
- Material: Stainless Steel
- Weight: 22kg
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 this outback exhaust fit my Isuzu MU-X?
This outback exhaust is specifically designed for Isuzu MU-X models with the 3.0L 4JJ1-TC turbo diesel engine manufactured between 2012 and 2016.
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 2-3 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 an Outback Exhaust?
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 across the rev range - perfect for when you're loaded up with family and gear.
How loud is the outback exhaust compared to stock?
Our 3" turbo back system produces a deeper, more refined note than the factory exhaust, but it's not excessively loud. It's sophisticated enough for comfortable family trips and long highway journeys, while still giving your MU-X a purposeful diesel sound under acceleration. It's the perfect balance for a premium 7-seater SUV.
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.
Will the outback exhaust rust or corrode?
Outback exhaust systems 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. With proper care, your exhaust will maintain its appearance and performance for many years.
Is the Outback exhaust suitable for towing?
Absolutely! The improved exhaust flow reduces back pressure and lowers EGTs, which is particularly beneficial when towing heavy loads. Many MU-X owners who regularly tow caravans or trailers report improved performance and reduced strain on the engine with our turbo back system installed.
Do you ship Australia-wide? What about international orders?
Yes, Outback Exhausts ships throughout Australia with fast, reliable freight services. This item is in stock and ready to ship with no delays. 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.
What's the difference between this and the DMAX exhaust?
While both the MU-X and DMAX share the same 3.0L 4JJ1 engine, they have different chassis configurations and exhaust routing. This system is specifically designed for the MU-X's longer wheelbase and 7-seater body. Always order the exhaust specific to your vehicle model for proper fitment.
Ready to upgrade your Isuzu MU-X? In stock and ready to ship Australia-wide. Order now and experience the Outback Exhausts difference with our premium 3" turbo back system.








