Milltek Rear Silencer / Back Box Axle-Back Exhaust for BMW M3 G80 & M3 Competition (2020+) | T304 Stainless | GT-115 115mm Polished Tips | ECE Type Approved EU/UK Road Legal | OPF/GPF Compatible | Muffler Upgrade | Rear Section S58 | SSXBM1169

Rear Silencer Upgrade with GT-115 Polished Tailpipes for BMW G80 M3 and M3 Competition OPF GPF | Type Approved | SSXBM1169

Give your S58-powered BMW G80 M3 the soundtrack it deserves with this UK-engineered rear section from Milltek. Built in high-grade T304 stainless steel and finished with bold 115 mm GT-115 polished tailpipes, this type-approved, road-legal rear silencer delivers a richer, deeper tone on OPF GPF cars while keeping motorway manners intact.

Why enthusiasts choose it

• Part number: SSXBM1169
• Type-approved for street use in the UK and EU, OPF GPF compatible
• GT-115 mirror-polished 115 mm tips that perfectly fill the G80 diffuser
• T304 aircraft-grade stainless steel for strength and corrosion resistance
• Precision mandrel bends for smooth gas flow and crisp throttle response
• Tuned note with minimal cabin boom, refined at cruise and assertive under load
• Direct bolt-on to factory mounts on particulate filter models
• Designed, developed and hand finished in Britain

Craftsmanship that lasts

Milltek’s T304 stainless construction and consistent-radius pipework deliver durability and performance you can rely on. Bore sizing and flow paths are optimised to enhance character without upsetting drivability, so you get a purposeful sound that stays civilised on long journeys with no intrusive resonance.

Compatibility

• BMW G80 M3, 2020 onwards, with OPF GPF
• BMW G80 M3 Competition, 2020 onwards, with OPF GPF
• S58 twin-turbo models equipped with petrol particulate filters

What’s included

• Milltek rear section with GT-115 115 mm polished tailpipes
• Fittings and clamps as supplied by the manufacturer

Tried and trusted by us

We’ve installed this system on multiple G80 platforms and the feedback is consistently positive. Customers love the premium finish, the spot-on tip alignment and the richer exhaust character that complements the S58 without drone. It transforms presence and sound while staying fully road legal.

Professional fitting

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Part number: SSXBM1169

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