Milltek Sport Resonated Cat-Back Exhaust with Titanium GT-90 Tips for BMW M140i F20/F21 LCI (2015+) 3 & 5 Door - 304 Stainless Steel Performance System

BMW M140i F20 F21 LCI Performance Catback with Titanium GT90 Tailpipe Finishers

Give your BMW M140i the soundtrack and finish it deserves. This premium UK-made catback for the F20 5 door and F21 3 door LCI models delivers a deeper, richer tone with refined manners for everyday driving. Featuring a resonated centre section and stunning titanium GT90 outlets, it is the ideal upgrade for owners who want grown-up sound, quality materials and a show-ready rear end.

Why this upgrade stands out

• Engineered specifically for BMW M140i F20 and F21 LCI 2015 onwards
• Resonated centre keeps cruising comfort while adding a purposeful bark under load
• Titanium GT90 tips for a bold, motorsport look with a premium finish
• Constructed from 304 grade stainless steel for long-term durability and corrosion resistance
• Precision mandrel bends and enlarged tubing to improve exhaust gas flow
• Designed and manufactured in the UK for exact fit on factory mounting points
• Supplied with clamps and hardware for a straightforward bolt-on installation

Sound you can live with

The resonated layout delivers a deeper, cleaner note from the B58 while avoiding annoying cabin boom. At idle and on the motorway it stays civilised, yet when you open it up the car rewards you with a crisp, sporty growl that suits a fast BMW hatchback.

Built to last

Using 304 stainless steel throughout, this system resists heat cycling and discolouration and is finished to a high standard. Smooth-radius bends maintain velocity for better flow, helping the engine breathe more freely without sacrificing drivability.

Fitment

• BMW M140i F21 3 door LCI 2015 onwards
• BMW M140i F20 5 door LCI 2015 onwards

What’s included

• Complete catback assembly with resonated centre section
• Titanium GT90 tailpipe finishers
• Mounting hardware and clamps as supplied by the manufacturer

Our experience and customer feedback

We have fitted this system to customer cars and our own vehicles at MJ Modifications, and the feedback is consistently excellent. Owners love the refined tone, perfect alignment and the way the titanium tips transform the rear of the car.

Installation and support

Professional fitting recommended. Book installation with MJ Modifications in Warwickshire or request a quote via info@mjmodifications.co.uk. We are happy to advise on compatibility, lead times and any supporting parts you may need.

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Transform your M140i with a high-quality catback that looks the part, sounds right and fits perfectly. Order today for fast dispatch and expert aftercare.