The base/S control arms are the same, but if you're after track performance, GT3 control arms are a popular swap. You get way more camber adjustment with them. Do bear in mind that if you're in autoX, it may bump you out of your class. The GT3 front control arms fit in the front AND back of the Boxster, you can get 2 pairs and get big camber adjustment all around or just one for the front, which comes with less camber from factory.
Some bushings can be replaced with polyurethane, at some cost to NVH. Poly lasts longer, which is nice.
The base/S springs/shocks are different, but they are a bolt-on swap.
|