At IND, we don’t wait for new products to arrive, we invest in the cars themselves. That approach gives us the ability to test, validate, and contribute to product development before parts ever reach the customer. The new Karbonius Carbon Fiber Strut Brace Set is a perfect example of that process in action.
With direct access to both the G90 M5 sedan and G99 M5 Touring, we were able to go beyond simple installation. We worked closely with Karbonius during development, providing real-world feedback through test fitting, road testing, and heat cycle validation. That collaboration allows Karbonius to refine their manufacturing and deliver a more complete, dialed-in product from day one. It also removes the guesswork for our customers, everything is sorted before it reaches your hands.
On our G99 M5 Touring, we installed the matte carbon version, while our G90 M5 sedan features the gloss finish. Both options pair perfectly with the 2x2 carbon twill weave found on Eventuri intake systems, creating a cohesive, OEM+ engine bay aesthetic that feels intentional and complete. For more parts and upgrades for this platform, explore our BMW G90 M5 collection.
From a performance standpoint, the Karbonius strut brace set is designed to improve chassis rigidity while reducing weight. By reinforcing the front suspension mounting points, the system enhances front-end stability and sharpens overall handling response. At the same time, it replaces the heavier factory brace with a lightweight carbon fiber solution. The OEM brace weighs approximately 1.68 lbs, while the Karbonius version comes in at just 0.58 lbs, delivering meaningful weight savings without sacrificing strength.
Manufactured in Spain, the system combines high-quality carbon fiber construction with precision aluminum hardware for an ideal balance of durability and performance. Fitment is exact, utilizing factory mounting points for a clean installation that feels right at home in the engine bay.
Available in both gloss and matte finishes, the Karbonius G90 / G99 M5 Carbon Fiber Strut Brace Set offers a subtle but impactful upgrade, one that improves both the driving experience and the visual presence under the hood.
