I agree. However, since you stated these will be your track-only pads, you might want to consider something even more aggressive. I have no experience with them on my IS, but I can tell you that they are completely inadequate for track use on my Corvette, which is about the same weight as the IS. I have about 10% pad left after one HPDE event, where I normally would get 4-5 weekends plus a bunch of street miles out of other pads.Allen0506 said:I'll chime in. HP+ are an excellent agressive street pad though they are just decent on the roadcourse. Make sure you flush the fluid with something track friendly prior to your event and then afterwards.