Also got my H&R from stillen.com for what I thought was pretty cheap and quick.

Hey guys... good thread as it answered my main question, but I have another one.

First off... spacers on my G37 Coupe were SO much easier... did bolt ons all around and no issues. I currently have 20mm bolt ons on the rear of my 370 and 15mm v1 on the front... both Ichiba. I did the fronts later and have had them on for a month and a half and have noticed vibrations from the start. I've been doing lots of traveling and haven't had much time to deal with it until now.

It sounds like the issue is with the Ichiba v1 spacers in the front and it sounds like the easiest fix is to just buy the H&R spacers. My question is... if I choose to instead go with 20mm H&Rs in the front... are the replacement studs I installed for my 15mm Ichibas long enough for the 20mm H&Rs? Potentially dumb question, I know... but thanks for all the info guys!

If you don't track the car I say no problem, you'll only be losing a couple of turns of thread of which there is plenty on the stock wheels.

Yeah, I won't be tracking it. Thanks, I appreciate it.

i'm experiencing the same vibrations on ichiba v1s. i am getting new wheels which require 15mm in front instead of 20, I will try to buy the H&Rs and see if it makes a difference.

i have 5mm stud extension HR DRS type spacers for sale if anyone wants them PM me.

So is this because the Ichiba v1 don't have hub centric spacers on them??

they are hubcentric but I think the fit is a little off.

Yeah, as toxik said.. they are hubcentric, however the centerting ring is not deep enough.

I switched out the Ichiba 15mm on the front and put on H&R 20mm spacers. It seems to have fixed most of my "balance" issues... Maybe still a SLIGHT issue but I mean very tiny.. not like before... but I really haven't driven on the highway much since, just to test the new spacers, which seemed great. I'm also switching out the 20mm Ichibas on the back for 25mm H&Rs (prob in the next 2 hours or so).

I took this pic of the 15mm Ichiba next to the 20mm H&R. You can see how much deeper the H&R centering ring is. Also, it's one piece and built MUCH better - which certainly cannot hurt.

http://i10.photobucket.com/albums/a1...9/HRIchiba.jpg

^ just a thanks to all posters here, I was using 10mm ichiba hubcentric and was vibrating like crazy (total stock setup) and after reading this thread decided to go with H&R 15mm hubcentrics and am sooo happy! Just had the car out and there are NO vibrations...:happydance:

Also, thanks to Charles at b2autodesigns for great customer service and product delivered.