Hartge BMW. Where to find specs.

[V8 FOU]

I'm buying an X5 Hartge. I am trying to find what was done by Hartge originally.
Does anyone know who to ask? Birds can't find anything.....

[VeeTenM]

like this?

https://www.bmwblog.com/2009/10/24/hartge-upgrades...

[anonymous-user]

I was just going to say ask Kevin but you’ve already tried.
How about asking a car magazine like evo? They have covered a few of them before.
Shame the kids didn’t want to continue with the family business!