With the 10x10 ET25 ARC8 square setup, so I need a spacer to get back to stock width (front or rear)?
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08-11-2026LAST POST
03BeastCharmer wroteCan you explain what you mean by "getting back to stock width"? Are you talking about wheel width, or track width?With the 10x10 ET25 ARC8 square setup, so I need a spacer to get back to stock width (front or rear)?
The 18x10 et25 square fitment will be 1.5" wider then the OEM 18/19x8.5" front wheels, and .5" wider then the OEM 18/19x9.5" wheels assuming you have a non-ZCP model.
Spacers are not needed unless you are running KW or Ohlin's suspension, in which case 5mm spacers would be necessary up front to clear the suspension.
- Ryan
ApexRaceParts wroteWith our without helper springs/guides? Or doesn't matter?JRZ, MCS, and TC Kline are some notable options as well
- Ryan
Sorry Ryan- I was wondering if the offset would result in a sunken look and if a spacer would be needed to to get back to stock. Don't know what stock competition package offset is.
03BeastCharmer wroteThank you for clarifying your question. The OEM ZCP wheels have the following specifications:Sorry Ryan- I was wondering if the offset would result in a sunken look and if a spacer would be needed to to get back to stock. Don't know what stock competition package offset is.
Front: 19x9 et31
Rear: 19x10 et25
Therefore our 18x10 et25 will fit exactly the same in the rear, and up front our wheel will be 19mm more aggressive towards the front fenders. In other words, it would be like installing 19mm spacers behind your front OEM ZCP wheels.
Does this make sense?
- Ryan
Yep. Thanks. Just installed them yesterday in prep for COTA next weekend.
03BeastCharmer wroteYep. Thanks. Just installed them yesterday in prep for COTA next weekend.
COTA is going to be epic, enjoy!- Ryan
mills84 wroteGreat action shots! We love to see the M paired with our wheels in its natural habitat

- Ryan
ApexRaceParts wroteAsk and you shall receive, my bad for the delay, been back from deployment for a while. Enjoy!Vybz We have to see more of this car! We are loving the teal wheels!




If you want more, just ask
I'm currently having a set of EC7's powder coated in P& Glimmer without a clear overlay. I'll post up photos of the after for those interested in the gallery.
z3papa wroteI'd like a peek.I'm currently having a set of EC7's powder coated in P& Glimmer without a clear overlay. I'll post up photos of the after for those interested in the gallery.
anyone have a photo of black apex 8 18x et25 in satin black on a white e90
My track setup...EC-7 18x10 et25 in Satin Black wrapped in Nitto NT-01 275/35 all around. 10mm front spacers and 12 rear spacers. 
Purple Turn 2 (1st Session) OrangeACS_0137_Aug1416_by_Keeg-CaliPhoto by dj_dub, on Flickr
Purple Turn 2-Rear (1st Session) OrangeACS_0310_Aug1416_by_Keeg-CaliPhoto by dj_dub, on Flickr
Purple Turn 9 (2nd Session) ACS_1639_Aug1416_by_Keegan-CaliPhoto by dj_dub, on Flickr
Purple Turn 13 Scenic (3rd Session) ACS_4040_Aug1416_by_Keegan-CaliPhoto by dj_dub, on Flickr

Purple Turn 2 (1st Session) OrangeACS_0137_Aug1416_by_Keeg-CaliPhoto by dj_dub, on Flickr
Purple Turn 2-Rear (1st Session) OrangeACS_0310_Aug1416_by_Keeg-CaliPhoto by dj_dub, on Flickr
Purple Turn 9 (2nd Session) ACS_1639_Aug1416_by_Keegan-CaliPhoto by dj_dub, on Flickr
Purple Turn 13 Scenic (3rd Session) ACS_4040_Aug1416_by_Keegan-CaliPhoto by dj_dub, on Flickr
Wow, that sir is one mean looking e90, very cool
DJ- do you rub at all up front? That looks so close lol.
What suspension are you on?
What suspension are you on?
automotiveaperture wroteThanks man, I appreciate it!Wow, that sir is one mean looking e90, very cool
Move Over wroteThis was the first time using this setup. There was very slight rubbing and I mean very slight only when hitting big bumps on the freeway driving to the track which was around 60 miles. After that initial drive on them, all the rubbing stopped completely on the track and performed amazingly.DJ- do you rub at all up front? That looks so close lol.
What suspension are you on?
dj_dub wroteLooks great! Love seeing an M3 in actionMy track setup...18x10 et25 in Satin Black wrapped in Nitto NT-01 275/35 all around. 10mm front spacers and 12 rear spacers.
-Matt
Throwing a request out here:
Does anyone have any pictures of GLOSS black or HYPER black ARC-8's on a jerez black M3? Or either color on any-kind-of-black M3 for that matter? I'm debating between satin-black and gloss-black, somewhat open to hyperblack as well, but havn't seen any gloss or hyperblack ARC-8's on a black M3 yet.
All the pictures of the satin black look great by the way!
Does anyone have any pictures of GLOSS black or HYPER black ARC-8's on a jerez black M3? Or either color on any-kind-of-black M3 for that matter? I'm debating between satin-black and gloss-black, somewhat open to hyperblack as well, but havn't seen any gloss or hyperblack ARC-8's on a black M3 yet.
All the pictures of the satin black look great by the way!
My favorite setup so far
anybody have pics of either ec7's or arc8's in 18" with 275/35/18 all around on stock ZCP suspension? thank you


