Tires OEM BMW or COMFORSER

HD thrust arms are an improvement without too much sacrifice. Better shocks as well. I’ve found tires make a huge difference with the E39.

Narrow, low-profile tires aren't as forgiving over potholes, especially when riding on the 20" wheels.

+1 used those on my e90 BMW last year during the 'record' snowfall and the were great.

Just be warned I bought new and we don’t drive it wild or anything but both rear tires (non staggered 21”) were at 3mm tread after 10k miles and I had to replace them. Was shocking.

Check out arivo, sailun, federal, Achilles, gt radial these are mid to upper mid budget tires.

Anything cheaper just go with westlake or look for the ph branded tire from yokohama. Hard pass for comforser tires