B4 Bilsteins. Comfort shocks. Unless you need stiffness for taking bends in your 260E at 90mph, I see no reason you need them. Or unless you're carrying heavy loads in your trunk, no reason for increased stiff shocks.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k