Part Number 4 Cylinder Eibach

[TopGun]

FIRSTLY:
I'm looking for the correct part number for the eibach pro kit for the 4-cylinder. The website says 5521.140, but in the past I believe it was .140 for the 6cylinder, and .240 for the 4cylinder.<p>Now they're using a generic part number for both.<p>Can anyone confirm the proper part number for my 1995 4 Cylinder Mx3. Also canadian suggested prices would be nice.<p>SECONDLY:
There's been some debate it seems as to whether a spring compressor is required for removing the stock springs. Is there any debate? Is it required? Please let me know. Thanks!

[TopGun]

In addition to the aforementioned, I searched for all this info, and I can't seem to access any of the suspension FAQ stuff except for whiteline suspension and ZX2 struts, neither of which I'm interested in.