Thanks for the clarification Doyle!
I did have some questions about the Bilstein stuff though.
I think I'm missing some knowledge in regards to the kind of springs that exist, but if Swift hasn't released lowering springs for the e90 xi, then what are the AST4100's using that Harold put together? I know they're using swift springs with that, and on their website they say they're using 60mm ID swifts.
What's the difference between what they did for the AST's and using coilover sleeves with 2.5" ID swifts?
Is there something inherently different between the B8's and the AST's that allow the ASTs to use swifts and not the B8's?