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

Turn up the character of your BMW M140i with a UK-engineered stainless catback

Give your 1 Series hot hatch the voice it deserves. This Milltek rear system in Race non resonated form with GT90 titanium tailpipes delivers a harder-edged, motorsport-inspired note on throttle and a clean, refined tone on cruise. Built in Britain from premium T304 stainless and designed specifically for the facelift BMW M140i F20 five-door and F21 three-door from 2015 onwards, it is the go-to performance exhaust upgrade for sound, quality and longevity.

Why enthusiasts choose this upgrade

• Race non resonated layout for a louder, more aggressive soundtrack without intrusive cabin boom
• GT90 90 mm titanium tailpipes for a lightweight, premium finish that fills the rear valance
• T304 stainless steel throughout for corrosion resistance and durability in all UK conditions
• Mandrel-formed tubing and increased diameter over stock to enhance flow and responsiveness
• Precision jig-built in the UK with a direct bolt-on fit using OE mounting points
• Tuned straight-through internals for a sharp, modern tone that suits the B58 3.0 turbo straight-six

Fitment

BMW M140i F20 5-door and F21 3-door, LCI facelift models, 2015 onwards.

Sound and driveability

Expect a deeper idle, crisper throttle response and a pronounced, engaging note under load. On the motorway it settles down nicely, making this a great choice for daily-driven cars that want weekend intensity without the drone.

Built to last

Crafted from high-grade T304 stainless with mandrel bends for uninterrupted flow, this system resists discolouration and harsh weather. The quality of the welds and materials is exactly what you would expect from a leading UK manufacturer.

What our customers say

We have installed this system on numerous M140i builds at MJ Modifications and feedback is consistently positive. Owners love the fit and finish, the premium GT90 titanium outlets and, most of all, the addictive soundtrack.

Professional fitting

Want it fitted properly the first time? Book installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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