IND has some solutions.
BMW MOTORSPORT F22 M235IR RACE TRUNK- Couldn't find the weight saving info
https://ind-distribution.com/product?sku=41628417227
EDISON COMPOSITES F87 M2 CARBON GTS HOOD- 11.5kg or ~25lbs weight savings (6kg vs 18kg)
https://ind-distribution.com/product?sku=EC-A1008
Edit: Updated links.