Milltek BMW M5 G90 / M5 G99 Touring Cat-back
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Sport exhaust system, type Cat-back (GPF-delete center section + rear muffler) by Milltek designed for BMW M5 G90 / M5 Touring G99 2024+
Made entirely of stainless steel and fitted with 4 exhaust tips in a choice of finishes (see: "Available options").
The system is compatible with the stock downpipe. No additional modifications are required for installation.
The rear muffler is equipped with a valve for adjusting the exhaust sound.
The system is controlled by the vehicle electronics in exactly the same way as the stock exhaust.
An optional valve controller allows the valves to open to 100% and provides manual remote control in ON/OFF/AUTO modes.
The GPF-Bypass center section removes the filters and features an active H-pipe section controlled in sync with the muffler valves.
Milltek is a British performance exhaust manufacturer that uses T304L stainless steel in its performance products. The brand develops and tests exhaust systems at facilities including its centre near the Nürburgring.
Its engineering process combines 3D scanning, laser cutting and CNC tube bending to create vehicle-specific components. Milltek exhaust systems suit drivers seeking a sportier soundtrack, a durable material and a design developed for their particular model.
Milltek is primarily based in Derby and also operates a development and distribution facility in Knoxville, USA. The manufacturer highlights T304L steel’s resistance to degradation and discolouration compared with many other stainless grades. The range includes EC-approved systems tested by TÜV in Germany, with approval coverage depending on the specific product.
History and development. Milltek was established in Britain in 1983. It gradually expanded manufacturing in Derby and Ilkeston, opening a dedicated advanced manufacturing centre in 2021. Motorsport participation and exhaust development for enthusiast vehicles have also shaped the company’s growth.
The business today. Today, the business combines UK production with testing at the Nürburgring and development operations in Knoxville, USA. It serves modern vehicles alongside older enthusiast cars through Milltek Classic, supported by an international dealer network. Its operations extend from in-house development to manufacturing and distribution.
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