Sorry for the confusion, I definitely drive a Crossfire and am currently competing in STU! lol

I've not corner weighted my car yet, but they seem to have shipped with ~55/45 weight distribution (checked at a weight station), so not terrible at least to start with.

Just yesterday I swapped in SRT6 springs that I bought off of another forum member, I used dot2 pads on the front, and kept dot1 pads in the rear. Overall my ride height stayed basically the same (which was my current desire). I appear to have the same ride height up front (its literally +/- a mm or two from base factory), and the rear end lost ~1cm from the SRT6 spring change. So I've got ~67 cm front height and ~71 cm rear height now.

Also, everything I buy is pretty much "Mercedes", a few places seem to have actual Crossfire tagged parts, but it is all the same anyway.

Tangential, but slightly related note, don't try to use a spring compressor on your rear springs unless you want a nice set of holes in the rear top perches (I couldn't find where they entered the body, if they even did). Take out the inner lower control arm bolt, and pivot the arm to the floor, the spring will just fall out.

edit: I see in your description you have your mods list and did the throttle body upgrade, so I think you should be in DSP or DP or something higher, if I recall there is no Street class which allows modification past engine inlet. Also a dumb rule is because our air filters are built into the plastic engine cover, that would also knock you out of Street class to do the cold air intake.. if you'd like I can help you figure out your proper class if you want to compete with SCCA at all