Milltek Sport BMW M5/M5 Competition Pre LCI OPF/GPF Bypass (F90)-R44 Performance

Milltek Sport BMW M5/M5 Competition Pre LCI OPF/GPF Bypass (F90)

Sale price£1,479.36GBP

Tax included. Shipping calculated at checkout



  • If you place an order with both in stock and back order or out of stock products, it will not be dispatched until all products are available to ship together.
  • Contact our sales team here for accurate lead times if you urgently need this product or would like it fitted to your vehicle at our North London based workshop.
  • Shipping time estimates at checkout are based on average courier delivery times and dont include time to despatch from our warehouse in some cases, for example when a product is on back order.

Milltek BMW F90 M5 Pre LCI OPF Delete Mid Section absolutely transforms the sound of the M5's 4.4l twin-turbo V8. This mid-section bypasses the factory OPF's and is a really cost-effective way of improving your vehicle's exhaust sound. 

Milltek Sport exhausts are produced in high-quality type 304 aircraft-grade stainless steel. This material is anti-magnetic (other manufacturers' stainless steel may not be) and is less susceptible to discolouration. This quality of stainless steel is used on all pipework and the total construction of the silencer. Mandrel bending ensures full flow bends for better gas flow and Milltek Sport exhaust systems are increased in bore to ensure ultimate performance without the loss of mid-range torque. All Milltek Sport exhausts are designed, developed and manufactured in-house in the UK.

Please note: You will need OPF delete cables or a stage 2 tune to run this mod-section.

*Only fits vehicles equipped with OPF filters.


MSBM369 - LH OPF/GPF Bypass
MSBM370 - RH OPF/GPF Bypass
MSBM371 - Active Centre Section
F5159 x2 - Adaptor to OE system


- High-quality type-304 aircraft-grade stainless steel
- Precision, quality-controlled manufacture to ISO 9001 standards
- Deletes factory OPF/GPF
- Substantial weight saving over original equipment exhaust systems
- Reduces back pressure
- Sharper throttle response
- Designed & manufactured in the UK


- BMW F90 M5 Pre-LCI (2018-2020)
- BMW F90 M5 Competition Pre-LCI (2018-2020)

NOT compatible with facelift (LCI 2021+) F90 M5. For this version, click here.