Seat Ibiza Chill - MIJ Exhaust Systems

Service Completed: Custom Back Box Delete Upgrade

At MIJ Exhaust Ltd, we recently completed a custom back box delete upgrade on this SEAT Ibiza Chill 1.4L Petrol, giving the vehicle a sportier exhaust note while maintaining everyday drivability.

For this build, we removed the factory rear silencer and fabricated a bespoke stainless steel replacement section in-house. The custom back box delete was designed to improve the character of the exhaust system, allowing the 1.4-litre petrol engine to produce a deeper, more noticeable tone without being excessive.

The upgrade enhances the overall driving experience by delivering a more engaging soundtrack, particularly under acceleration, while retaining a clean and tidy appearance at the rear of the vehicle. Our custom-fabricated section was built specifically for the Ibiza, ensuring excellent fitment and long-term durability.

At MIJ Exhaust Ltd, we specialise in custom stainless steel exhaust fabrication for all types of vehicles, from daily drivers to performance cars. Every exhaust modification is tailored to the individual vehicle and customer requirements, helping achieve the ideal balance of sound, appearance, and practicality.

Unlike off-the-shelf solutions, our custom exhaust work is fabricated in-house by experienced exhaust specialists, allowing us to create systems that are built to last and designed around the customer’s desired outcome.

As with all of our exhaust upgrades, this back box delete was professionally fabricated and installed in-house, providing a high-quality finish and reliable performance.

Be sure to check out the before-and-after content, including the vehicle’s original exhaust setup and the accompanying sound test video, to hear the difference and see the completed back box delete upgrade in action.
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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