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3.5-inch Outback exhaust system components for Isuzu MU-X 3.0L 4JJ1, featuring mandrel-bent stainless steel pipes, designed for improved exhaust flow and performance.
Diesel exhaust pipe component for performance enhancement by SC Diesel Tuning.
3.5-inch muffler delete pipe for Isuzu MU-X 3.0L 4JJ1 (2017–2021)
3.5-inch tailpipe section for Isuzu MU-X 3.0L 4JJ1 DPF-back exhaust system
3.5-inch Outback exhaust system components for Isuzu MU-X 3.0L 4JJ1, featuring mandrel-bent stainless steel pipes, designed for improved exhaust flow and performance.
Diesel exhaust pipe component for performance enhancement by SC Diesel Tuning.
3.5-inch muffler delete pipe for Isuzu MU-X 3.0L 4JJ1 (2017–2021)
3.5-inch tailpipe section for Isuzu MU-X 3.0L 4JJ1 DPF-back exhaust system

DPF Back Exhaust – Isuzu MU-X 3.0L 4JJ1 (2017-2021) | Outback Exhausts

Price range: $1,073.00 through $1,185.00

SKU: N/A
Product by: Outback Exhausts

The 3.5″ Outback Exhaust System for the Isuzu MU-X 3.0L 4JJ1 (2017-2021 DPF back) is a bolt-on stainless steel performance exhaust that enhances flow, sound and reliability.

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Description

Overview

The 3.5″ Outback Exhaust System to suit Isuzu MU-X 3.0L 4JJ1 2017–2021 (DPF Back) is engineered for improved flow, durability and sound while maintaining a straightforward bolt-on fitment. Built in Australia using high-quality 409 stainless steel and mandrel-bent tubing, this system delivers increased throttle response, improved exhaust tone and long-term reliability for touring, towing and daily driving.

This upgrade replaces the factory DPF-back section and mounts directly to the vehicle’s existing hangers, ensuring a simple installation without modification. Owners will benefit from reduced restriction, better heat management and tougher construction suitable for harsh off-road conditions.

Key Features

  • Australian-made 409 stainless steel construction for strength and corrosion resistance.
  • 3.5″ mandrel-bent pipework designed to optimise exhaust gas flow.
  • Direct bolt-on fitment using factory mounting points.
  • Available with resonator or pipe-only configuration for preferred sound level.
  • Includes all required clamps, hangers and hardware.
  • Backed by a 5-year manufacturer warranty.

Specifications

  • Vehicle Make: Isuzu
  • Model: MU-X (Wagon, 4WD only)
  • Engine: 3.0L Diesel 4JJ1, turbocharged
  • Year Range: 2017–2021
  • System Type: 3.5″ DPF Back Exhaust
  • Material: 409 stainless steel
  • SKU: OE1694-35

What’s in the Box

  • Front connecting pipe
  • Centre resonator or straight pipe section (depending on selected option)
  • Rear tailpipe section
  • Mounting hardware and clamps

Compatibility

This exhaust system is designed specifically for the Isuzu MU-X 3.0L 4JJ1 engine (2017–2021 wagon 4WD models). It is not suitable for other MU-X variants or earlier engine configurations.

Delivery & Lead Times

Outback Exhaust Systems are stocked and shipped Australia-wide. Delivery times vary by location, and some remote areas may require depot collection. Dispatch typically occurs within standard business timeframes. Please contact us for current stock availability or freight requirements.

Professional Fitting Service on the Sunshine Coast

Sunshine Coast Diesel Tuning offers professional installation for all performance exhaust systems. Our team provides expert fitment, diagnostics and setup to ensure your Isuzu MU-X performs at its best. Visit us here:
Sunshine Coast Diesel Tuning

Additional information

Weight 22 kg
Dimensions 160 × 40 × 30 cm
EXHAUST SIZE

3.5 inch (Gunmetal color)
SOUND OPTIONS

Small Resonator / Muffler (Quiet Note), Pipe Only (Loud Note) – Recommended

Brand Information

  • Outback Exhausts
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