Isuzu DMAX & Mazda BT-50 3.0L (2021+) 3.5” Exhaust System | 304 Stainless Steel Australian Made

Isuzu D-MAX & Mazda BT-50 (2021+) 3.5” DPF-Back Exhaust – 4JJ3 Engine

Engineered for the latest generation 4JJ3 platform, this 3.5” DPF-back exhaust system brings premium performance, refined sound and long-term durability. Handcrafted on the Sunshine Coast from high-grade 304 stainless steel, each system is built to order using precision fabrication techniques for the ideal fit and finish.

⚠️ PLEASE NOTE:

• Professional installation required
• 1–2 week lead time (built to order)

Custom Fabrication Advantage

Unlike mass-produced systems, this exhaust is custom fabricated in-house, which allows for superior fitment, consistent quality and attention to detail. Every system is built specifically for the D-MAX and BT-50 platform – no compromises.

Performance You Can Rely On

Designed to maximise exhaust flow after the DPF, this system helps:

• Reduce exhaust gas temperatures (EGTs)
• Improve engine efficiency
• Support better throttle response

Ideal for towing, touring and demanding off-road conditions.

Refined Turbo Diesel Sound

Expect a deep, clean exhaust note under load, with a quiet and comfortable cabin during highway driving. This system is tuned to give the best of both worlds – presence outside, comfort inside.

Key Features

• 3.5” Custom Fabricated System – Built for optimal flow and durability
• 304 Stainless Steel Construction – Excellent corrosion resistance in harsh Australian conditions
• Handmade on the Sunshine Coast – Built in-house for strict quality control
• DPF-Back Design – Retains factory emissions equipment
• Precision Fitment – Designed specifically for 4JJ3 D-MAX & BT-50 models
• Low EGT Performance – Helps keep engine temps down under load
• Balanced Exhaust Note – Deep tone without excessive cabin drone

Vehicle Fitment

• Isuzu D-MAX (2021+) – 4JJ3 Engine
• Mazda BT-50 (2021+) – 4JJ3 Engine

Important Notes

• Professional installation is required
• DPF-delete configurations are for off-road use only and require ECU remapping
• DPF-delete setups will void factory warranty

Warranty Information

Modifying your vehicle does not automatically void your manufacturer’s warranty. Under Australian Consumer Law, as outlined by the ACCC, a warranty can only be denied if the modification is proven to have caused the fault.

Built for Australian Conditions

From the Sunshine Coast to the harshest off-road environments, this system is made to last. Combining premium materials with expert craftsmanship, it’s a dependable upgrade for drivers who demand performance and longevity.

Why Choose This System?

If you’re after a premium, Australian-made exhaust that delivers cooler temps, improved drivability and a refined diesel note, this is the ultimate upgrade for your 4JJ3-powered D-MAX or BT-50.