ive got the same jtdm GT running on Eibach 30mm drop springs and 18" multispokes.
The ride didnt seem much harder after fitting the springs last year but now seems more "crashy" over bumps. I suspect the standard shocks have taken an extra beating with the stiffer springs and now it does seem harder than the standard springs.
I am considering either going back to std springs OR splashing out on a set of Koni FSD's which everyone seems to reccomend with the Eibachs.
I have to say though, it corners like its on rails on a smooth dry road now and the car does look the NUTS lowered with 18's!!!
I dont realy want to go backwards with the springs, i just want more reassurance from GT people that have fitted the same spring/shock combo before i shell out 5 ton for the Konis!!
Going by this thread, theres at least 3 of us thinking of buying the Konis so why dont we all club together and get a bulk purchase discount from somewhere??????????
Anyone know the cheaapest place to get the Konis?, best ive found is Larkspeed at £499
hope the info helps fellas