Milltek Sport GPF-Back (Cat-Back) Non-Resonated Race Performance Exhaust with Titanium GT-90 Tips for BMW 1 Series M140i F20 & F21 LCI 3 & 5 Door (OPF Models Only) 2019-On

Race-level sound and premium finish for your BMW M140i

Give your 1 Series the voice it deserves with the Milltek Sport OPF-back rear section in non silenced Race configuration, complete with Titanium GT90 tailpipes. Built in the UK from 304-grade stainless steel for long-term durability and a crisp, motorsport-inspired note, this rear system is tailored for BMW M140i F20 and F21 LCI models that left the factory with an OPF/PPF from 2019 onwards, in both 3 door and 5 door form.

What you will notice

• Louder, sharper exhaust tone with a raw, engaging character compared to stock
• Free flowing rear section that reduces restriction after the particulate filter
• Titanium 90 mm GT90 tailpipe finishers for a lightweight, high-end appearance
• Consistent bends and optimised tubing for smooth gas flow and fast throttle response
• Corrosion resistant stainless construction engineered for UK roads

This OPF-friendly rear exhaust retains your petrol particulate filter and catalysts while replacing the post-OPF pipework and back box for a cleaner path and maximum soundtrack. The non resonated Race layout prioritises volume and character for enthusiasts who want a stronger presence without a boomy cabin. We run Milltek on our own builds and our customers consistently praise the fit, finish and tone.

Compatibility

• BMW M140i F20 and F21 LCI facelift
• 3 door and 5 door hatchback
• OPF/PPF equipped vehicles from 2019 onwards only

Why Milltek from MJ Modifications

• UK made performance rear section for the B58-powered M140i
• Precision build quality with a proven, drone-controlled soundtrack
• Titanium GT90 tailpipes complete the rear with a premium motorsport look

Fitting and support

Professional installation recommended. MJ Modifications offers in-house fitting in Warwickshire. To request a quote, email info@mjmodifications.co.uk.

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