Okay so has anyone found a fix to this or any positive input from taking it into the dealership and having the squirreliness stopped? Having the same issue and I have the 20mm STI RSB and bushings. I'm on Prova Sport Lowering springs as well. I do alot of Highway driving and have alot of squirreliness in the front as well. been debating getting the front strut bar from SSD but wanted to see if anyone had found a solution, besides taking it to the dealer haha.