Brakes are uprated with a larger master cylinder and alloy S caliper.

Source: https://www.blackpoolgazette.co.uk/lifestyle/cars/porsche-911-toyota-supra-bmw-e46-m3-as-ulez-puts-the-spotlight-on-classic-cars-heres-11-motors-from-your-childhood-available-to-buy-right-now-in-lancashire-4282819

Check the following points for smooth and effective brake system to prevent brake caliper breakdown.

Source: https://www.eveshamobserver.co.uk/lifestyle/brake-caliper/

It is possible something in the front suspension, inner tie-rod end wear is common, stabilizer links, body mounts or even a brake caliper is shifting could be making the noise.

Source: https://www.courant.com/2023/08/21/questions-and-answers-for-the-car-doctor-2/