Polyurethane is a specialized plastic that has been available for more than three decades. However, it is only recently that we have found a way of engineering special properties into this material, and using it in applications we wouldn’t have thought of a few years ago. That is, making the stuff reliable enough for years of heavy use and to cut down on squeaking.
When you talk about your Volkswagen (or any other car for that matter), you will find that suspension bushings are among the most stressed components. All road impacts are transmitted through them. They have to take a lot of stress in the most extreme conditions possible, and without lubrication or maintenance. Standard bushings are deliver a comfortable ride only when their rubber is in original soft condition. This softness also makes handling sloppy and the chassis uncommunicative. It's a trade of short-term refinement for reduced traction, tire wear, and braking instability. Why does a new car feel solid and or a 3-4 year old one quite different? Now you know.
The improvement of this compound over the years has reduced the compromises involved with a harder bushing -increased noise and harshness. The Powerflex brand of polyurethane suspension bushings are especially well-engineered for your Volkswagen. A huge range of bits are available to fit the various models made over the years. Go with polyurethane in your tuned street or race weapon to gain all the benefits.
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