Mazda BT-50 & Isuzu D-MAX 3” Stainless Single Exhaust System
Vehicle: Mazda BT-50 & Isuzu D-MAX
Year Model: 2020–Current
Material: 304 Stainless Steel
Exhaust Size: 3” Single Exhaust System
Available Options:
- DPF-Back Single Exhaust System
- Turbo-Back Single Exhaust System
Upgrade your Mazda BT-50 or Isuzu D-MAX with a 3” stainless steel single exhaust system, designed to improve sound, airflow and performance while standing up to harsh Australian conditions.
Designed and fabricated in-house at GSL FAB, this exhaust system is built for real-world use, whether you’re towing, touring, working or heading off-road.
Key Features:
- Suits Mazda BT-50 & Isuzu D-MAX (2020–Current)
- 3” stainless steel single exhaust system
- Premium 304 stainless steel construction
- Improved exhaust flow and reduced back pressure
- Enhanced exhaust note without excessive drone
- Built tough for Australian conditions
- Direct-fit design
- Australian made and fabricated
Built using high-quality stainless steel, this system offers long-term durability, corrosion resistance and reliable performance in demanding environments.
Turbo-Back Single Exhaust System
The Turbo-Back Single Exhaust System replaces everything from the turbo outlet through to the rear of the vehicle.
Designed to maximise airflow and minimise restriction, it allows the engine and turbocharger to operate more efficiently under load.
Benefits include:
- Increased power and torque
- Faster turbo spool and improved throttle response
- Lower exhaust gas temperatures (EGTs) under load
- Smoother acceleration and improved drivability
- Improved engine efficiency
Ideal for towing, touring and performance-focused applications where maximum exhaust flow is required.
Important: A suitable ECU remap and clutch upgrade (where applicable) are required to ensure the engine operates safely and performs optimally with this setup.
DPF-Back Single Exhaust System
The DPF-Back Single Exhaust System replaces everything from the DPF through to the rear of the vehicle while retaining all factory emissions equipment.
Designed to improve exhaust flow after the DPF, it delivers a stronger, deeper exhaust note while maintaining factory emissions compliance.
Benefits include:
- Deeper, cleaner exhaust note
- Improved exhaust flow compared to the factory system
- Smoother driving experience
- Retains factory DPF and emissions equipment
- Minimal cabin drone
Ideal for owners wanting improved sound, quality and durability without moving to a full turbo-back system.
Built Tough by GSL FAB
Every exhaust system we build is fabricated with precision and attention to detail right here in Toowoomba.
We focus on:
- Clean, consistent welds
- Proper fitment to factory mounting points
- Long-lasting stainless steel materials
- Professional finish and installation
No shortcuts – just quality fabrication built to perform.
All GSL FAB exhaust systems are backed by our 11-Year Warranty, giving you confidence in the quality, durability and workmanship of every system we build.
Designed to withstand harsh Australian conditions, our exhaust systems deliver reliable long-term performance whether your BT-50 or D-MAX is used for work, touring or everyday driving.
