First of all the fitment information is wrong - I checked with EBC then ordered then fitted and they DEFINITELY FIT a 2000 Mustang GT. Secondly, they are way better than the Greenstuff for this rather heavy vehicle. Excellent stopping power. They haven't been around long enough to talk longevity, but will definitely be back when they are. My greenstuffs, which are too expensive for the weight of the car, lasted three years so I don't think they will wear out too quickly.