I have tein s-tech springs w/18's . Did the alignment and resurfacing of the rotors. Ever since i got this car (3months ago) it has always shaked badly at 60mph then simmers down gradually when i hit 70-80 then 90 again there it is. Thought it was the wheel weights on the old rims so i got new ones and still this happens. Anyone have some suggestions? Also have kyb gr-2 struts on my ride. Really appreciate any advice or suggestions.

 

Has it ever been wrecked? Sounds like something ain't right. You may want to take it to a body shop and have them look at it. I have the GR-2's with Eibach pro-kit springs, and my car is SOLID up to 110MPH.

 

get your wheels balanced somewhere else whoever did them didnt do a good job. thats classic syptoms of a bad balancing job