not much dust and no squealing. Everytime someone says greenstuff they overthink and start talking about how redstuff is a better match for our vehicle weight. However it seems to me those are not meant for sportcars as they are geared towards cars with higher weight that do not need as much bite but more linearity, more like the HPS?? Anyhow get the Greenstuff!!! I pretty much guarantee they are better. Check my profile for other braking mods..