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Brand: Milltek


Looking to give your BMW F90 M5 or M5 Competition 4.4l Twin Turbo LCI a boost in sound and aesthetics? Look no further than the GPF/OPF Bypass from Milltek. This high-quality Cat-Back system is designed as a direct replacement for the original system, making installation a breeze. One of the unique selling points of this product is the multiple configurations available, allowing you to choose the increase in volume of your exhaust and/or add a more suitably aggressive tone. This means that you can customize your driving experience to suit your preferences, whether you're looking for a more subtle sound or a bold roar. The GPF/OPF Bypass is made from 304L “Aircraft” Grade stainless steel, ensuring that it will last through any harsh conditions. This high-quality material provides superior durability and corrosion resistance, ensuring that your investment will stand the test of time. In terms of compatibility, this product is specifically designed for the BMW F90 M5 and M5 Competition 4.4l Twin Turbo LCI, making it a perfect fit for your vehicle. Additionally, the Milltek brand is known for its high standards of quality and performance, so you can trust that you're getting a top-of-the-line product. Perhaps one of the best features of the GPF/OPF Bypass is its ease of installation. With no welding required, you can easily install this Cat-Back system yourself, saving you time and money on professional installation. This is a great option for those who are looking for an easy DIY project that will give their car a significant performance boost. In conclusion, the GPF/OPF Bypass from Milltek is an excellent choice for anyone looking to improve the sound and aesthetics of their BMW F90 M5 or M5 Competition 4.4l Twin Turbo LCI. With its multiple configurations, high-quality materials, and easy installation, this product is a must-have for any car enthusiast. Invest in the GPF/OPF Bypass today and experience the ultimate driving experience.

Fitting Guide

BMW > 8 Series > F91/F92 (2020 - Present) > M8 & M8 Competition 4.4l V8 Twin Turbo

Part Details


Cat & Filter Back Systems








80mm (3.15")



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