[Welcome to Radio & Sound!]

looking to upgrade the 6 inch sub. Does anyone have any experience with this?

thanks

[Bilstein or Belltech?]

anyone else to chime in?

sounds like bilstein for factory height and/or belltech if you want a 2" drop?

My 03 makes me sea sick with worn out OE shocks at 76K miles and am wondering the same thing.

I read great things about the belltech but my mechanic is a huge fan of the bilstein (BMW fanatic)