Originally Posted by Bmw135er
The inserts will give that much of an improvement, or the complete replacement parts?
The inserts will make a clearly noticeable difference at the limit, as well the M3 replacements. The full M3 replacements will deflect less than the factory bushings with the Powerflex inserts providing better control. Is the difference worth it? To some people, sure. The Powerflex inserts will be sufficient for my needs.