The 3″ Outback Exhaust System for the Mitsubishi Challenger 2.5 L 4D56 turbo-diesel delivers high-flow performance in rugged 409 stainless steel with a bolt-on fitment and Australian engineering.
The 3″ Outback Exhaust System is a turbo back upgrade designed for the Mitsubishi Challenger PB/KH 2.5 L 4D56 turbo diesel, covering models from 2009 to 2016. This Australian-made system uses 409 stainless steel and mandrel-bent tubing to improve exhaust flow and sharpen engine response. It delivers a deeper, sportier note while keeping daily drivability intact. Because it bolts directly to the factory mounting points, most owners can install it without a hoist.
This full 3″ (76.2 mm) turbo back system suits touring, towing and off-road use. It includes the dump pipe, muffler section, tail pipe and a complete fitting kit, so you can replace the factory system with confidence. With strong build quality and reliable performance in Australian conditions, it offers Challenger owners an upgrade that improves power, sound and durability.
Key Features
Vehicle-specific 3″ turbo back exhaust for the Mitsubishi Challenger PB/KH 2.5 L 4D56 turbo diesel.
Built from durable 409 stainless steel for long service life in harsh conditions.
Mandrel-bent tubing improves exhaust flow and helps the engine breathe more efficiently.
Bolt-on installation uses factory mounting points with no welding required in normal fitments.
Includes fasteners and gaskets; retain the original turbo gaskets during installation.
Produces an aggressive exhaust note while keeping comfort suitable for daily use.
Backed by a 5-year warranty on the system and a 2-year warranty on extractors.
Specifications
Vehicle: Mitsubishi Challenger Wagon PB/KH
Engine: 4D56 2.5 L turbo diesel
Engine type: Turbo diesel PB/KH
Body style: Wagon
Year range: 2009–2015 factory fitment (covers 2009–2016 listing)
Exhaust layout: 3″ (76.2 mm) turbo back
Material: 409 stainless steel
SKU: OE3605-S
What’s in the Box
3″ dump pipe
3″ connecting pipe
3″ muffler pipe section
3″ tail pipe
Fitting kit with fasteners and gaskets (re-use OEM turbo gaskets)
Compatibility
This exhaust system suits Mitsubishi Challenger PB and KH variants fitted with the 4D56 2.5 L turbo diesel engine. It fits Australian-delivered vehicles from 2009 to 2015. Confirm your build year, engine code and model designation before ordering. Aftermarket long-range tanks or modified tow bars may affect routing, so check clearances if your vehicle has these upgrades.
Delivery & Lead Times
This exhaust system ships Australia-wide and internationally. A physical street address is required because couriers cannot deliver to PO Boxes. Some regional areas and heavier consignments may ship in multiple cartons or attract additional freight charges. If you want to confirm freight costs, contact us with your postcode before ordering so we can provide accurate options.
International orders ship on a case-by-case basis to secure the most cost-effective rate.
Professional Fitting Service on the Sunshine Coast
Sunshine Coast Diesel Tuning provides a professional fitting service for this 3″ exhaust system. Our technicians remove the factory exhaust, assemble the new system, set alignment for maximum clearance and torque all fasteners to the correct specification. We check for leaks and contact points and can combine the installation with custom ECU tuning for improved results. Book your Challenger with Sunshine Coast Diesel Tuning to ensure your new system performs at its best on every track.
