BMW M135i 2013 - MIJ Exhaust Systems

Service Completed: Custom Dual Rear Section with Single Exit Tips

At MIJ Exhaust Ltd, we recently completed a custom dual rear section upgrade on this BMW M135i, giving it a more aggressive exhaust note and a cleaner, performance-inspired rear-end finish.

For this build, we fabricated and installed a custom dual rear section designed to improve exhaust flow while enhancing the signature sound of the turbocharged engine. The result is a deeper, more refined exhaust note that delivers plenty of character, whether cruising or under acceleration.

To complete the look, we fitted single exhaust tips on both sides, giving the M135i a clean, symmetrical OEM+ appearance that perfectly complements the car’s sporty styling.

As with all of our custom exhaust systems, the entire setup was fabricated and installed in-house using high-quality materials and precision craftsmanship, ensuring excellent fitment, long-lasting durability, and a professional finish.

We’ve also recorded a full sound test video so you can hear exactly how this BMW M135i sounds with its new custom dual rear section.

Check out the video and let us know what you think of this BMW transformation.

https://www.instagram.com/p/DYK0xp0DOmv/

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