Milltek Sport OPF/GPF-Back Axle-Back Exhaust System with GT-115 Burnt Titanium Tips for BMW G82 M4 & M4 Competition (S58 3.0 Twin-Turbo) 2020-On [OPF/GPF Models Only]

Milltek rear section exhaust upgrade with GT-115 blue titanium tailpipes for BMW M4 G82 and M4 Competition S58 3.0 twin turbo GPF models 2020 onwards

Unlock the sound and style your G82 deserves. This UK-built Milltek rear silencer assembly sits after the factory gasoline particulate filter and delivers a richer, sportier tone, sharper throttle response feel and a premium motorsport look thanks to the heat-treated GT-115 burnt titanium tailpipes. It keeps everyday refinement intact with zero unwanted boom inside the cabin.

Manufactured from aerospace-grade T304L stainless steel with precision mandrel bends, the system maintains a constant radius for smooth exhaust gas flow. Milltek engineers optimise the tube diameter to enhance performance without sacrificing mid-range drivability. Every kit is designed, developed and hand finished in the UK for long-lasting quality you can trust.

Key benefits

• Direct replacement rear box for BMW M4 G82 coupe and M4 Competition GPF-equipped cars
• Filter-back layout retains the factory OPF/GPF while improving tone and character
• GT-115 burnt blue titanium tailpipes for an aggressive, high-end finish at the rear
• Type 304 non-magnetic stainless steel throughout for corrosion resistance
• Mandrel-bent pipework for consistent diameter and efficient flow
• Acoustically tuned for a deeper, crisper note with no intrusive cabin resonance
• UK designed, UK made and hand finished by experienced craftsmen

Vehicle compatibility

• BMW M4 G82 3.0 S58 bi-turbo 2020 onwards
• BMW M4 Competition G82 3.0 S58 bi-turbo 2020 onwards
• For OPF/GPF vehicles only. Not suitable for non-OPF cars

Why enthusiasts choose this upgrade

The GT-115 heat-treated titanium trims dramatically lift the rear styling with a larger, purposeful outlet and a premium blue finish. The soundtrack is deeper and more engaging than stock, without drone. We have fitted this system for customers at MJ Modifications and feedback has been consistently positive on sound quality, build and fitment.

Professional fitting

Book installation with MJ Modifications in Warwickshire. For pricing and availability email info@mjmodifications.co.uk.

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Images for illustration. Fits GPF/OPF-equipped BMW G82 M4 and M4 Competition models only.