front and rear endlinks

So this coming summer I will be installing my ISC coilover suspension. With that being said I am planing on installing either whiteline or rallitek F/R sway bars. I am confused when dealing with endlinks. I find so many different types. Kartboy endlinks, listed under my car say STi also...any help. As in what adjustable, different sizes, current setups. Thanks.

endlinks break down in to two main groups (as far as you should be concerned, and to ease this discussion):

spherical bushings or solid bushings

Typically, solid bushings are cheaper, make less noise and are better options for the street. Spherical bushings require more 'up keep' and tend to be included on adjustable types....which you do not want.

Kartboy is the "standard" when it comes to solid endlinks, however, Perrin just released their own version a couple months ago that seem to have good reviews.

so should I go with a Endlink that says it is for lowered suspension? As far as the Kartboy endlinks, on their website I go to my vehicle and on the third page they have the endlinks, but all those say STi...do we use the same ones?