I am putting in kwv2's and have a couple questions b4 I start. And yes I am using the 330i write up. In the write up the pss's are not pre-assembled.... but the Kw's are. However, the kws feel only hand tightened.... is that the way I should install them or does it all need to be torqued down? Any helpfull hints on the install would be great. I have done springs but never coilovers.