Hi this is my first post, as well as first time on the forum. I have a 99 Lexus GS300 w/ basic 20" Omega wheels. The problem is when I hit the brakes the whole front end shakes insanely. It is obviously worse at higher speeds. The problem only started a few months after I put the wheels on. I know the rotors are warped but want to upgrade to a better brake kit. Can anyone make some recommendations on low cost yet effective solutions. I've wondered if I can get upgraded Toyota brakes like from a GS 400 or an Avalon. Any shared wisdom would be greatly appreciated.  

I will definitely ask around for you!