Has anyone installed COBB sport springs for a 2007 WRX TR? the front ones went in fine but the rear is giving me problems. the spring doesn't sit into the top perch at all. i emailed COBB with pics and they told me i didn't have the stock top hats. my entire suspension set up is stock except for the front springs which are now COBB. does the TR trim just not come with top hats for the rear? I know that the TR trim was for people to just get rid of a lot of parts and upgrade to performance, but did they not put top hats on the rear just for this reason?