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

At MIJ Exhaust Ltd, we recently completed a custom back box delete and single exit exhaust upgrade on a 2018 SEAT Leon FR Technology 1.8 TSI turbocharged petrol, giving the car a sportier rear-end appearance with a premium, high-gloss finish.

For this build, the original rear back box was removed and replaced with a custom back box delete, finished in a single exit configuration to give the Leon a cleaner, more distinctive look.

To complete the setup, we fitted twin black titanium exhaust tips, featuring a high-gloss Titanium Black finish. This finish offers a slightly lighter, more refined shade of black, with a polished titanium-like appearance that adds a subtle premium touch to the rear of the vehicle.

As with all our custom exhaust work, the system was fabricated and fitted in-house, with careful attention to pipework, fitment and tip alignment to ensure a neat, symmetrical finish.

Whether you’re looking for a back box delete, custom single exit exhaust, black titanium exhaust tips, or a custom SEAT Leon FR exhaust upgrade, our team can design and fabricate a setup to suit your vehicle and preferred style.

We’ve got a video of this build, showcasing the exhaust upgrade and the finished setup, so you can see the results and hear how the car sounds.

https://www.instagram.com/p/Dc5KYTzAjMA/

The gallery showcases this 2018 SEAT Leon FR Technology 1.8 TSI custom exhaust upgrade, featuring a back box delete, single exit configuration and twin black titanium tips with a high-gloss finish.

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