My is250 is at 28k and the brakes are starting to squeak, appearantly the lexus brake pads tend to do that. Any suggestions on quality breaks for an is250?

 

First I'd check if you actually need to replace anything- there's other reasons for squeeking beyond worn pads or rotors.

Then if you do need parts I'd insure you know what you need...likely it'd just be front pads. In which case the OEM Lexus low-dust pads are what I'd suggest. I think they're like $65 from Sewelll