I just got the Eibach Pro Kit lowering springs put onto my G37S, with stock 19" wheels and tires. What size spacers do I need for that flush look? I've heard different things. 20mm all around, 20mm in the front, 15mm in the back - etc etc. What is the real size I need with stocks?

Thanks!

 

If you want flush, 20mm front and 25mm rear.

I'm personally running 20mm all around with stocks dropped moderately on coils...pics are in my profile.

Have a friend that was running eibachs with 20mm all around...looked clean.

 

I've been searching for this as well, and I've read different things in different threads. I could've sworn I read some folks said 25mm rubs in the rear, whereas others said it was fine. I think it really depends on your suspension setup and ride height. It's probably best to let your suspension settle, get an alignment, then measure for yourself with a yardstick and metric ruler.

Also, the 20mmF/15mmR setup was probably for the 245/275 alternate tire setup. I've listed below what I've gathered from searching. Anyone feel free to correct me if I've posted wrong info.

OEM 19" Sport Wheels and Tires:
15mm Front / 15mm Rear - Recommended by H&R
20mm Front / 20mm Rear - Seems to be common with no rubbing issues
20mm Front / 25mm Rear - Some folks say 25 might rub in the rear
25mm Front / 20mm Rear - Some folks say there is more gap in the front to accomodate 25, and this evens the track front-to-rear

245/275 Alternate Tire Setup:
15mm Front / 15mm Rear - Safe bet
20mm Front / 15mm Rear - Front can accomodate 20, even track
20mm Front / 20mm Rear - Might rub in the rear with wider 275 tires

Hope that helps. Again, please correct if anything is wrong.

 

Thanks for all of the info! I'm probably going to do 20mm all around, unless someone that is running it, can explain why I should run 25mm in the front.

I might go with the 245/275 setup later.

 

I would suggest going with the 20mm all around.
Here is my G with 20mm front / 15mm back...Im really thinking about replacing the back with 20mm.

If you go with 25mm in the front the rim will stick out too far.
With the 20mm you can see the lip of the rim if you look down from the top of the edge of the fender.

 

Yeah, your rear looks like it could use a little more compared to the front. Gio, are you running stock tire sizes or 245/275?

 

I looked to confirm:
F = 225/45
R = 245/40

Yeup, my concern was rubbing so I went with the 15mm but after the install I noticed I could of gone with 20mm for the rear.
I still like the way it looks or would of changed it a while back but will change it soon so is off my "to do list"

 

I thought I saw someone mention 25mm F in a thread somewhere, but I could be mistaken.

If you install 20mm all around, you'll be fine with the OEM tire size, but you may rub in the rear if you choose to mount wider tires later, so just keep that in mind.

I might just go with 15mm all around for the "almost flush" look with OEM, and that way I'll still be able to install wider tires later without changing the spacers.