Service Completed: Custom Back Box Delete & Dual Exit Exhaust Upgrade

At MIJ Exhaust Ltd, we recently completed a custom back box delete and dual exit exhaust upgrade for a 2018 Mazda 3 Sport 2.0 Petrol, giving this sporty hatchback a more aggressive sound and a distinctive rear-end finish.

For this build, the original rear silencer was removed and replaced with a custom fabricated back box delete, creating a freer-flowing rear section and giving the Mazda a deeper, sportier exhaust note.

To finish the system, the customer chose a pair of blue titanium exhaust tips, featuring a double-skinned, slash-cut design. The vibrant titanium finish adds a unique touch to the rear of the Mazda while giving the exhaust a sharp, performance-inspired appearance.

As with all of our custom exhaust work, the system was hand-fabricated in-house using premium-grade stainless steel, with careful attention to fitment, alignment and finish.

Whether you’re looking for a back box delete, custom dual exit exhaust, sports exhaust, stainless steel exhaust upgrade, or simply want to give your car a more aggressive sound and appearance, our team can design and fabricate a system to suit your vehicle.

The gallery showcases this 2018 Mazda 3 Sport custom exhaust upgrade, including the customer-chosen blue titanium double-skinned slash-cut tips.

🎥 Sound test video below – turn the volume up and hear the finished exhaust note!

https://www.instagram.com/p/DbYm9iRG1Ub/

Why Choose a Custom MIJ Exhaust?

No two vehicles—and no two customers—are alike. That’s why every exhaust system we build is custom-made on the vehicle for the perfect fit, tone, and performance.

Whether you’re after:

  • A sportier, more aggressive sound,
  • A performance-focused setup, or
  • A refined, OEM-style tone,

    • —we tailor the design specifically to your goals.

     

    More Than Just Custom Builds

    We provide all types of exhaust services, including:

  • Exhaust repairs and leak fixes
  • Section replacements
  • Welding cracks and fault correction
  • Tailpipe upgrades and cosmetic enhancements
  • Small adjustments and one-off jobs

    • No job is too small.

     

    Want to Know How We Build Your System?

    Learn more about our process on our Exhaust Construction page: https://www.mijexhaust.com/exhaust-construction/

     

    Get Your Personalised Quote

    Use the enquiry form on the side of this page, and our team will get back to you with a tailored estimate.

     

    See More of Our Work

    Check out our social channels for videos, sound clips, and behind-the-scenes content:

    Instagram: https://www.instagram.com/mijperformanceexhaust/
    Facebook: https://www.facebook.com/MIJPerformanceExhausts
    YouTube: https://www.youtube.com/@MIJPERFORMANCEcom/shorts
    TikTok: https://www.tiktok.com/@mij_performance