Ford Fiesta ST-3 – Mid Box Delete + Valved Rear Section at MIJ Exhaust! 🔥

This Ford Fiesta ST3 came into MIJ Exhaust for a mid box delete paired with a custom valved rear section, built to bring out a more aggressive sound while keeping everyday usability. 😎💨

We removed the mid box to open up the exhaust flow and enhance the natural tone of the engine, then fabricated a bespoke valved rear section to give full control over the sound.

With the valve closed, the car remains refined and comfortable for daily driving — open it up, and it delivers a much louder, sharper, and more exciting exhaust note.

To complete the look, we fitted black matte twin staggered tips, giving the rear a stealthy, performance-focused finish that perfectly suits the ST styling.

We’ve included before and after images so you can clearly see the transformation in both look and setup.

Check out the link below to hear the sound difference with the valve both open and closed. 🎥🔊
https://www.instagram.com/p/DVidauhARV0/

The result is the perfect mix of subtlety and aggression — all controlled at the touch of a button.

Another clean and custom exhaust upgrade completed at MIJ Exhaust. 🔧

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