well, i had koni adjustables and eibach springs on my old 1990 tsi talon. and i just did care for the ride it gave, and i could never find a 'setting' that felt right whenever id go on a road course. i got some h+r sport springs, and bilstein shocks.. wow. what a difference. it felt just right on the road course as well as for daily driving. i could take corners faster, harder and with less understeer. it really seem to just grip the road.. and no i didnt get new tires either.
since then, ive put them on my mk4 GTI and its the same thing. biting, gripping, predictable cornering and handling.
and they only enhanced my type r's already great suspension.
just my 2 cents.