Audi A3 2014

Service Completed: Custom Cat-Back Exhaust Upgrade

At MIJ Exhaust Ltd, we recently completed a bespoke exhaust upgrade on this Audi A3 TFSI SE (2014) 1.4L Petrol, designed to improve exhaust flow, enhance sound, and give the vehicle a cleaner, more purposeful rear-end finish.

This build featured a custom cat-back system, including both mid and rear sections, along with a backbox delete to reduce restriction and allow the engine to breathe more freely. The result is a more responsive driving feel with a deeper, sportier exhaust note that adds character without being overwhelming for daily use.

The system was finished with a single exit twin-tip setup, giving the rear of the vehicle a sleek OEM+ appearance while subtly upgrading its overall visual presence.

As with all of our exhaust systems, this setup was hand-fabricated in-house using high-quality T304 stainless steel and fully TIG welded, ensuring excellent durability, corrosion resistance, and a precise, factory-quality fit.

A clean and effective upgrade that enhances both the look and sound of the A3 while keeping it refined and usable every day.

Be sure to checkout the before and after images to see the transformation, and watch the video to see the work carried out and hear how it sounds.

https://www.instagram.com/p/DW4N3IEgZtq/

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