Milltek GPF OPF Bypass Pipes - Fits OE Downpipes and OE Particulate Filter Back System Only - BMW 8 Series M8 and M8 Competition 4.4 V8 Twin Turbo F91 and F92 Coupe and Cabrio - OPF GPF Cars Only - 2020 onwards
Transform the sound and response of your BMW M8 or M8 Competition with the Milltek GPF OPF Bypass. Engineered in the UK and crafted from aerospace grade type 304 non-magnetic stainless steel, this direct-fit OPF delete solution replaces the restrictive Gasoline Particulate Filters on OPF GPF equipped cars, unlocking a deeper, louder, more motorsport-inspired exhaust note and improved exhaust gas flow.
Designed to fit to OE downpipes and the OE particulate filter back system only, these precision mandrel-bent pipes maintain a constant radius for optimised gas flow and reduced back pressure, helping your 4.4 litre twin turbo V8 breathe more freely. The result is a sharper, more engaging drive and the soundtrack the M8 deserves.
- Direct bolt-on Milltek GPF OPF bypass for BMW 8 Series M8 and M8 Competition F91 and F92 Coupe and Cabrio 2020 onwards
- Fits to OE downpipes and OE particulate filter back system only for seamless installation
- Aerospace grade type 304 stainless steel for durability and long-term corrosion resistance
- Mandrel-bent construction for optimised flow and reduced back pressure
- Sporty, crisp, aggressive exhaust tone with enhanced V8 character
- UK designed, developed and hand-finished by Milltek
We have fitted these Milltek OPF delete pipes to customer BMW M8 and M8 Competition models and the feedback has been outstanding. Owners love the significant increase in volume, the deeper tone, the improved response and the overall quality of the Milltek engineering. If you want a louder BMW M8 exhaust, a more engaging V8 soundtrack and a high quality, UK made solution, this Milltek GPF bypass is the upgrade to choose.
Compatibility and fitment
- BMW 8 Series M8 and M8 Competition - F91 Cabrio and F92 Coupe - 4.4 V8 Twin Turbo - 2020 onwards
- OPF GPF cars only
- Designed to fit OE downpipes and OE particulate filter back system only
Why choose Milltek for your BMW M8 exhaust upgrade
Milltek’s exhaustive acoustic development ensures a balanced, performance-focused sound while minimising unwanted NVH. The use of high grade stainless steel throughout provides excellent longevity, resisting discolouration and corrosion. Each system is carefully developed to deliver a premium finish and a precise fit on your BMW M8 F91 F92.
Professional fitting available
We highly recommend professional installation. Nforcd offers fitting at our Warwickshire workshop. To request a fitting quote or book your slot, email Sales@nforcd.com.
Important notes
For off road and motorsport use only. Removal of OPF GPF may not be legal for road use in your region. Check local regulations before purchase and installation.
Common search terms: BMW M8 OPF delete, BMW M8 GPF delete, Milltek OPF bypass, Milltek GPF bypass, BMW M8 Competition exhaust upgrade, F91 F92 M8 exhaust, BMW 4.4 V8 twin turbo exhaust, BMW M8 straight pipe, BMW M8 louder exhaust, BMW M8 Milltek exhaust.