my friend drives an 02 subaru wrx and he got a set of tein lowering springs. he says he feels like he now haS to buy aftermarket shocks cause his stock ones cant keep up. im plannin on getting eibach's prokit springs and he recommended them to me as well, saying hed probably get those too for his car. he says that eibachs are designed to work well w/ stock suspension and that if i got them i wouldnt need anything else. is this true? would i be awright if i just got the springs and nothing else?