I did a ton of research on this and the consensus is yes. People are getting about 7k-10k out of their factory shocks/struts when lowered. I have the Eibach Pro springs for the 335i installed and the ride is great and not harsh at all. I coupled these springs with Bilstein Sport Shocks/Struts that are designed for the XI and meant specifically to work with lowering springs. I don't have any complaints and the handling is great compared to stock and this is even on run flat tires. I have zero rake and can post pics showing wheel gap later on.
Originally Posted by 1QuikWS6
Are the Eibachs gonna trash the factory shocks after a period of time?