I think, but am not sure, that the E420 sway bars will fit a 300E. However, the best results will probably come form installing a set of Sportline swaybars specifically designed for your car.

Rusty has them at www.*************** - or try Fastlane (our sponsor's parts site at the top of the page). I think that a complete swaybar set, including bushings, is less than $400.

You may want to think about changing to Sportline springs as well.

Hope this helps,
Troy
1995 E420 90k