Milltek Sport GPF/OPF-Back Resonated Performance Exhaust with Burnt Titanium GT-90 90mm Tailpipes for BMW 1 Series M140i F20/F21 LCI Hatchback (3 & 5 Door, PPF/OPF/GPF Models) 2019–2020 | Stainless Steel Rear System

BMW 1 Series M140i F20/F21 LCI 2019–2020 OPF models | Milltek Sport GPF-back Resonated System with Burnt Titanium GT-90 90 mm Tailpipes

Transform the soundtrack and look of your M140i with this premium Milltek Sport rear system. Crafted in the UK from high-grade 304 stainless steel, this OPF-back resonated setup unlocks a deeper, more purposeful tone while keeping everyday refinement intact. The stunning blue burnt titanium GT-90 90 mm outlets complete the motorsport-inspired finish.

We fit these regularly and run them on our own cars. Feedback from our customers is consistently strong on sound quality, finish, and overall driving enjoyment. If you want that authentic performance note without unwanted cabin boom, this is the upgrade.

Why this upgrade stands out

• OPF-back layout retains the factory particulate filter for OPF and GPF equipped models.
• Resonated centre section for a refined, sporty tone with minimal drone on the motorway.
• CNC mandrel bends for smooth gas flow and crisp throttle response.
• Aerospace-grade 304 stainless construction for exceptional durability and corrosion resistance.
• GT-90 burnt titanium tips deliver an aggressive, track-influenced aesthetic.
• Designed, developed and hand finished in the UK for consistent Milltek quality and sound.
• Direct bolt-on using OE mounting points for straightforward installation.

Compatibility

For BMW M140i F20 and F21 LCI hatchback, 3 door and 5 door, model years 2019 to 2020 with OPF or GPF only.

• Fits PPF equipped models only.
• Does not fit earlier non-OPF cars.
• Connects after the factory particulate filter.

What you will experience

A deeper, cleaner tone on start-up and under load, with a mature soundtrack at cruising speeds. The aesthetic uplift from the 90 mm burnt titanium GT-90 trims is immediate, and the precision welds and finish reflect Milltek’s high standards. It is the ideal balance between everyday usability and enthusiast sound.

Professional fitting

Prefer expert installation? Book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Key details

• Milltek Sport OPF-back resonated rear system for BMW 1 Series M140i F20/F21 LCI 2019–2020
• Blue burnt titanium GT-90 90 mm tailpipe finishers
• 304 stainless steel throughout with mandrel-bent pipework
• Sporty yet civilised cabin levels, ideal for daily use
• UK engineered and hand finished, direct fit on OE hangers

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