last night i finish up installing tein h-tech from the previous year which gives me 1.4 f .7 r and i must say its pretty accurate, they fit perfectly and drop very nicely. i drove it today and i can feel my steering wheel vibrating a little bit, not very bad but i can feel it from before.
currently im running 19" with 35 series tires and balance about a month ago and it ran fine. i do however see a slight wheel bent inward, neg camber??
do you think this is the problem?
i am gettin alignment done monday so i hope that helps. but i did called a tire shop and they told me it might not help. he specifically said if your car was not shaky or vibrating at all before the drop than it shouldnt affect it afterward. do you think hes right? either way im still getting alignment but i want to know whats causing this annoying vibration. thx n advance!
btw pics coming soon

 

I didn't know you can use the previous years springs on 07'.. I thought only H&R and Eibach are working on 07' sedans right now..

 

get your alignment checked to see if there's a problem...lowering the car will increase negative camber, especially if u go over 1". don't think this should cause vibration though, so perhaps ask the tech to see if you made any mistakes on the install...

a vibrating steering wheel might also be caused by wheels that are out of balance. did you knock loose any of the little weights they install to balance you wheels?

 

doesnt look like anything was knock off, i was pretty careful of the installing process and inspected it.

i guess ill have to wait till tomorrow after the alignment and rebalancing the wheels.

 

So.. You can use any of the springs from previous year on 07'??

 

I have same problem, after springs install I started to get lots of vibration through the steering wheel, got my wheels balanced and alignment done and it did help a bit, but there's still some vibration coming through - I'm starting to get used to it and it doesn't bother me so much anymore...

 

yep and it works great. however the rear drop lowerer than .7 inch, more like 1in.

i fix the problem, had it align this morning and rebalance. everything is back up and running fine. thanx for all the help!