Isuzu DMAX 4JJ3 Exhaust

Isuzu DMax 4JJ3 Exhaust system is a 3.5-inch DPF back exhaust for the Turbo diesel 4JJ3

This is a 3.5-inch Stainless steel system that bolts directly to the DPF and replaces the standard exhaust.

This is a 3/4 length exhaust that finishes at the diff. This gives the most potential exhaust note with the DPF in place and allows for a large spare tire without it hitting on the exhaust

This system is hand-made in-house by KM- Kuluin Mufflers. We are located on the Sunshine Coast Qld and specialize in Custom Exhaust Fabrication. All of our products are Australian-made and created from the highest quality locally sourced components. Our fabrication team takes pride in the products we make to ensure our customers are 100% satisfied with their exhaust.


– a 3.5-inch system made up of mandrel-bent materials

– 304 stainless steel for extended service life off-road

– Increased Exhaust flow out of the DPF

– Aussie-made, you can call and deal with real people in your country 👍

– Increased turbo whistle

– Improved Flow and Performance

– Quick easy shipping throughout Australia and NZ

NOTE- this is the system to fit the new 2021 model.

For more information please check out the video on the Kuluin Mufflers YouTube channel:
Kuluin Mufflers – YouTube

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