3" Turbo Back Exhaust System - Mitsubishi Challenger PB/KH 2.5L 4D56 Diesel (2009-2016) | Outback Exhausts

Premium 3" Turbo Back Exhaust System for Mitsubishi Challenger PB/KH

Transform your Mitsubishi Challenger PB/KH 2.5L 4D56 diesel (2009-2016) with our Australian-made 3" stainless steel turbo-back exhaust system. Engineered for maximum performance, durability, and that deep, aggressive exhaust note you've been craving for your 4x4.

Key Features & Benefits

• Premium 409 Stainless Steel Construction - Built to withstand Australia's harshest conditions
• 3" Mandrel Bent Tubing - Smooth exhaust flow for improved power and torque
• Turbo-Back Design - Complete system from turbo to tailpipe for maximum performance gains
• Bolt-On Installation - Direct fit with all necessary hardware included
• 5-Year Warranty - Backed by our confidence in Australian manufacturing
• Improved Fuel Economy - Better exhaust flow means better efficiency
• Enhanced Engine Sound - Deep, purposeful tone without excessive drone
• Perfect for Towing - Increased torque and reduced EGTs when hauling heavy loads

Performance Gains

Experience significant improvements in throttle response, power delivery, and torque across the entire rev range. The free-flowing 3" design dramatically reduces exhaust gas temperatures and back pressure, allowing your 4D56 diesel to breathe easier and perform better—especially when towing caravans, boats, or trailers, or when touring with a fully loaded vehicle.

Australian Made Quality

Every Outback Exhausts system is precision-engineered and manufactured right here in Australia using premium-grade stainless steel. We understand the demands placed on 4x4 exhausts—from corrugated outback tracks to coastal salt spray—and build our systems to exceed those challenges year after year.

What's Included

• Complete turbo-back exhaust system (3" diameter)
• All necessary gaskets (excluding turbo gasket)  and hardware
• 5-year manufacturer warranty

Fitment Specifications

• Make: Mitsubishi
• Model: Challenger PB / KH
• Engine: 2.5L 4D56 Diesel
• Years: 2009 - 2016
• Configuration: Turbo-Back
• Diameter: 3 inch (76mm)
• Weight: 23kg

Frequently Asked Questions

Will the outback exhaust fit my Challenger?

This outback exhaust is specifically designed for Mitsubishi Challenger PB and KH models with the 2.5L 4D56 diesel engine, manufactured between 2009 and 2016. Please verify your vehicle's engine code and year before ordering. If you're unsure about fitment, contact us with your VIN and we'll confirm compatibility.

How difficult is the installation of the Outback Exhausts system?

This outback exhaust is a bolt-on system designed for straightforward installation. Most customers with basic mechanical skills and a vehicle hoist can install it in 2-3 hours. All necessary gaskets and hardware are included. We recommend professional installation if you're not confident working under your vehicle or don't have access to proper tools and equipment.

What performance gains can I expect from an Outback exhaust?

You'll notice improved throttle response, better power delivery throughout the rev range, and significantly enhanced torque—particularly beneficial when towing or carrying heavy loads. Many customers also report fuel economy improvements of 0.5-1.5L/100km due to reduced exhaust restriction and lower exhaust gas temperatures (EGTs).

Will the outback exhaust be too loud or cause a drone?

The outback exhaust systems are engineered to deliver a deep, purposeful note without excessive cabin noise on the highway. You'll enjoy an enhanced exhaust note under acceleration while maintaining comfortable cruising noise levels for long-distance touring. It's noticeably sportier than stock but not obnoxiously loud.

What's covered under the 5-year warranty?

The Outback exhaust's 5-year warranty covers manufacturing defects and material failures under normal use. This includes weld integrity, material corrosion, and structural failures. The warranty does not cover damage from accidents, improper installation, modifications, or off-road impact damage.

Will the outback exhaust help with towing performance?

Absolutely! The increased exhaust flow significantly reduces back pressure and exhaust gas temperatures, which translates to better torque delivery and more consistent power when towing heavy loads. Many customers report their Challenger feels like a different vehicle when towing after installing this exhaust.

Do you ship Australia-wide?

Yes, Outback Exhausts ships to all Australian states and territories. Shipping costs are calculated at checkout based on your location. We also offer international shipping for select products—contact us for a quote if you're located outside Australia.

Can I install the outback exhaust myself or do I need a mechanic?

While the outback exhaust is a bolt-on system with detailed instructions, we recommend professional installation if you don't have experience working on exhaust systems or access to a vehicle hoist and proper tools. A qualified mechanic can typically complete the installation in 2-3 hours.

Will the outback exhaust affect my fuel economy?

Most customers report improved fuel economy after installation, typically in the range of 0.5-1.5L/100km, due to reduced exhaust restriction and lower engine load. The exact improvement will vary based on your driving style and conditions.

Ready to unleash your Challenger's potential?

Order now and experience the Outback Exhausts difference. Australian made, ADR compliant, and backed by our 5-year warranty. In stock and ready to ship!