Here’s a quick project that will noticeably perk up the handling on an E46, one of the most popular platforms in NASA racing and NASA HPDE. The front sway bar end links have ball joints on each end, and they wear out. On my car, you could feel a slight clunk when you initiated turn in. A closer inspection revealed that the ball joints were sloppy and loose.
Because I use this car 99 percent of the time as a daily driver, I decided to go with end links that are just a little bit more rigid than stock and stock rubber frame-mounting bushings with new brackets.
These end links and frame bushings and brackets are available as kits from the BMW specialist you’re more comfortable with, and they’re not terribly expensive, either. These kits came from ECS Tuning, but they’re also available from Turner and Bimmerworld.
You can do this project in your driveway in probably an hour, and that includes putting the car up on jack stands. In terms of difficulty, I rate this one wrench on a scale of five, and I found it was best to replace the links first, then the frame-mount bushings and brackets. Here’s how it goes together.