Milltek Sport OPF/GPF Back Exhaust System, Brushed Titanium GT-100 Tips for BMW M5 F90 & M5 Competition 4.4 Twin Turbo V8 (2020-on, OPF/GPF Cars) - T304 Stainless Performance Upgrade

Filter-Back Performance Exhaust with GT-100 Brushed Titanium Tailpipes for BMW M5 F90 and M5 Competition (2020 onwards, OPF-GPF models) – 304-Grade Stainless Construction

Unlock a richer soundtrack and sharpened road presence on your BMW M5 F90 with this UK-built filter-back system from Milltek. Designed specifically for OPF-GPF equipped 2020-on cars, this rear section upgrade replaces the pipework from the particulate filters to the tailpipes, enhancing tone and character while keeping the factory emissions hardware in place. Expect a deeper, crisper note under load with refined manners at motorway speeds and no intrusive cabin boom.

Why this rear section is the go-to upgrade

• Made in Britain and hand finished for a precise, OEM-style fit
• Premium 304 austenitic stainless throughout for long-term corrosion resistance
• CNC mandrel bends maintain internal diameter for smoother gas flow
• Optimised bore for improved response without sacrificing mid-range flexibility
• Acoustically developed for a sporty, engaging note without annoying drone
• GT-100 brushed titanium tailpipes deliver a purposeful, high-end look
• Direct bolt-on to factory mounting points. No cutting of the OPF-GPF units

Hear and feel the difference

• Deeper, more aggressive tone on throttle with a refined idle
• Clean, motorsport-inspired character that complements the 4.4 twin‑turbo V8
• Comfortable cruising with minimal cabin resonance
• Strong, durable finish that keeps its appearance mile after mile

Vehicle compatibility

Suits the following models with factory particulate filters:

• BMW M5 F90 4.4 Twin‑Turbo V8 – 2020, 2021, 2022, 2023, 2024 onwards with OPF-GPF
• BMW M5 Competition F90 4.4 Twin‑Turbo V8 – 2020, 2021, 2022, 2023, 2024 onwards with OPF-GPF

Not suitable for earlier non-OPF vehicles.

Built to last, engineered to perform

The system uses non‑magnetic T304 stainless steel for the pipework and silencers, ensuring excellent durability in the UK climate. Precision mandrel bending preserves flow through the bends, and careful acoustic tuning gives your M5 a more evocative voice while maintaining day-to-day refinement.

What our team and customers say

We run Milltek systems on our own builds and feedback from M5 owners has been consistently positive. Fitment is spot on, the finish is premium, and the sound strikes that ideal balance between everyday usability and weekend excitement.

Fitting and support

Professional installation recommended. For expert fitting, contact MJ Modifications in Warwickshire for a tailored quote: info@mjmodifications.co.uk.

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Need help confirming compatibility or arranging installation? Get in touch and we will be happy to assist.