Milltek Sport Stainless Steel Axle-Back Exhaust for BMW 3 Series G80 M3 & M3 Competition (2020+) | GT-115 Brushed Titanium Tips | ECE Approved | OPF/GPF Only | SSXBM1171

Milltek Sport rear section with GT-115 brushed titanium tailpipes for BMW G80 M3 and M3 Competition OPF/GPF vehicles — Part No. SSXBM1171

Transform the tone and finish of your G80 with this Milltek Sport rear exhaust assembly. Precision built in the UK from high grade 304 stainless, this road-legal, ECE approved rear box and quad tip setup delivers a deeper, more purposeful soundtrack with no intrusive cabin boom. The GT-115 brushed titanium tailpipes give a premium motorsport look that suits the aggressive styling of the 2020-on BMW M3 and M3 Competition. Designed specifically for cars fitted with a petrol particulate filter, it integrates seamlessly with OPF/GPF hardware while unlocking the character you want from a performance saloon.

Why enthusiasts choose this Milltek rear section

• Direct-fit rear system for BMW G80 M3 and M3 Competition, 2020 onwards, OPF/GPF models
• ECE approved for hassle-free road use across Europe and the UK
• GT-115 brushed titanium quad tailpipes for a factory-plus finish
• Refined, sporty tone with no drone, no harsh resonance, comfortable motorway cruising
• Constructed from aerospace-grade 304 stainless steel for durability and corrosion resistance
• Mandrel-bent pipework for smooth gas flow and performance-friendly bore sizing
• Engineered by Milltek Sport in the UK for consistent quality and fitment
• Part number: SSXBM1171

Engineered sound, premium materials

Milltek Sport designs, develops and hand-finishes its systems in Britain using non-magnetic 304 stainless for the silencers and pipework. Consistent mandrel bends maintain optimal diameter for efficient flow, while careful acoustic tuning creates a rich, engaging note under load and a calm, refined character at steady throttle. The GT-115 brushed titanium tips complete the look with a lightweight motorsport aesthetic.

Proven on our own cars and customer builds

We have fitted and run this exact rear section on G80s and feedback has been excellent. Owners report an addictive cold start, stronger presence during acceleration and zero droning on long journeys. The brushed titanium quad exits are a standout visual upgrade that looks OEM-plus rather than aftermarket.

Compatibility and key info

• Vehicle: BMW 3 Series G80 M3, G80 M3 Competition
• Model years: 2020 onwards
• Emissions hardware: OPF/GPF only, designed for cars with a petrol particulate filter
• Approval: ECE approved, road legal
• Configuration: Rear section, backbox and tailpipes
• Tailpipes: GT-115 brushed titanium quad tips
• Milltek Part No: SSXBM1171

Who this upgrade is perfect for

If you want a BMW G80 M3 rear box upgrade, a G80 M3 Competition backbox with titanium tips, a road-legal performance muffler for OPF/GPF cars, or a stainless rear system that enhances sound without cabin drone, this Milltek solution is a superb choice.

Fitting and support

Professional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. For an installation quote, email info@mjmodifications.co.uk.

What is included

• Milltek Sport rear section for BMW G80 M3 and M3 Competition, OPF/GPF only
• GT-115 brushed titanium quad tailpipes
• All required clamps and hardware supplied by Milltek

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