Milltek Sport OPF/GPF Bypass Pipes - Non-Resonated Louder Exhaust - BMW G80 M3 & M3 Competition (2020+) - Fits OE Downpipes & OE Rear System Only - Requires OPF Bypass Module or Stage 2 ECU Tune - 304 Stainless - Part No. SSXBM1196

Milltek SSXBM1196 Particulate Filter Delete Centre Sections for BMW G80 M3 and M3 Competition

Part number: SSXBM1196

Unlock the S58 soundtrack with Milltek’s straight-through centre sections that replace the factory gasoline particulate filters on the G80 platform. This unsilenced setup delivers a sharper, harder-edged tone with increased volume and rapid-fire crackles on shift, while keeping cabin boom to a minimum. If you want a dramatic sound transformation and freer breathing without swapping your original rear silencer, this is the proven solution.

Why enthusiasts choose this system

• Big sound gain from a straight-through, unsilenced centre section for a more motorsport character
• Removes restrictive particulate filter elements to maximise flow potential and throttle response
• Constant-radius, mandrel-bent tubing for smooth gas velocity and reduced back pressure
• T304 premium stainless construction throughout for durability and corrosion resistance
• UK engineered and hand finished for a precise fit on the G80 chassis
• Compatible with the standard front pipes and the factory rear muffler only for a clean, bolt-on install

Fitment and requirements

• BMW G80 M3 and M3 Competition, model years 2020 onwards
• Designed to connect to the original downpipes and the OEM back box only
• An OPF cancellation module or a Stage 2 ECU calibration is required to avoid warning lights
• For vehicles equipped with particulate filters

Construction and sound quality

Milltek utilises non-magnetic T304 stainless steel, TIG-welded and mandrel bent for consistent bore size through every curve. The result is a crisp, race-inspired note with pronounced turbo whistles and an addictive overrun, without the droning that plagues poorly designed systems. It is the sweet spot for drivers who want a serious sound upgrade while retaining the stock rear silencer.

What we have seen in the workshop

We have installed this setup on multiple customer G80s and the feedback has been consistently positive. Fitment is straightforward, tone is spot on, and drivability remains civil on the motorway. It is one of the most cost-effective ways to let the S58 breathe and sing.

Professional installation

Prefer expert fitting and coding support. Book your car in with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Important information

• Track and off-road use where applicable. Check local regulations before purchase
• Requires an OPF emulator module or a Stage 2 tune to manage diagnostics
• Intended to work with the standard front pipes and standard rear section only

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