2009 G37x dropped on Eibach 6390.140 Review
6399.140
ride feel better than stock but not with over 3 passenger.pick up some bussiness friends from JFK, i feel like to kill myself on the way to the hotel....
did a alignment after install spring no camrber kit need.
The picture with the stock wheels is with the Eibach 6390.140 kit. The rear was almost riding on the bump stops.
The picture with the aftermarket wheels is with 6399.140 kit rear springs installed (6388.002) plus one Universal Coil Spring Isolator Type E from Energy Suspension Parts. The car sits flat now.
I am very happy with the back finally. I can easily hit the bump stops in the front still however. Eibach recommended installing the Front Dust Boot BS770043 which increases front travel 10-12mm.
The picture with the aftermarket wheels is with 6399.140 kit rear springs installed (6388.002) plus one Universal Coil Spring Isolator Type E from Energy Suspension Parts. The car sits flat now.
I am very happy with the back finally. I can easily hit the bump stops in the front still however. Eibach recommended installing the Front Dust Boot BS770043 which increases front travel 10-12mm.
Thread Starter
Registered User
Joined: Sep 2010
Posts: 11
Likes: 1
Yes I used the type E tube and slipped it on the bottom of the rear springs.
Also, I removed the stock dust boot cover on the front struts this week and replaced them with the Eibach dust boot cover and picked up an extra .5 inch of suspension travel. This makes a huge difference as I am no longer hitting the front bump stops.
Also, I removed the stock dust boot cover on the front struts this week and replaced them with the Eibach dust boot cover and picked up an extra .5 inch of suspension travel. This makes a huge difference as I am no longer hitting the front bump stops.
Registered Member
Joined: Aug 2015
Posts: 958
Likes: 82
From: Indianapolis->Charlotte
The picture with the stock wheels is with the Eibach 6390.140 kit. The rear was almost riding on the bump stops.
The picture with the aftermarket wheels is with 6399.140 kit rear springs installed (6388.002) plus one Universal Coil Spring Isolator Type E from Energy Suspension Parts. The car sits flat now.
I am very happy with the back finally. I can easily hit the bump stops in the front still however. Eibach recommended installing the Front Dust Boot BS770043 which increases front travel 10-12mm.
The picture with the aftermarket wheels is with 6399.140 kit rear springs installed (6388.002) plus one Universal Coil Spring Isolator Type E from Energy Suspension Parts. The car sits flat now.
I am very happy with the back finally. I can easily hit the bump stops in the front still however. Eibach recommended installing the Front Dust Boot BS770043 which increases front travel 10-12mm.
Registered Member
Joined: Jul 2013
Posts: 219
Likes: 43
From: Lex, KY
You bumped a thread that's been dead for 4 years to say thanks and to ask a question to a member who hasn't been active in almost a year. smh
You'd have done a lot better to save his pic and start a new thread in the wheels & tires section.
You'd have done a lot better to save his pic and start a new thread in the wheels & tires section.
Registered Member
Joined: Aug 2015
Posts: 958
Likes: 82
From: Indianapolis->Charlotte
Awe I'm sorry for not being a forum nerd and noticing the date. Forgive me for wanting the information but not knowing the poster hasn't been on in a year. This forum evolves at a snails pace. I have limited time and less for this post. 
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