IS F (2008-2014) Discussion topics related to the IS F model

Will this 18" square setup fit?

Old 08-03-13, 08:18 PM
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Reaper21
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Default Will this 18" square setup fit?

Looking to run the following square setup. Will they rub?? I'm pretty sure the rears will be fine, I'll probably add 5mm spacers too. I'm more concerned with the fronts. Thanks.

RAYS Gram Lights 57DR
18x9.5 +38 All around
255/35/18 Dunlop Direzza DZ101
Old 08-03-13, 08:24 PM
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If the fronts don't fit I'll just go with the 8.5" with 225/40/18 up front.
Old 08-03-13, 08:27 PM
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Murph145
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Yea that should fit as long as they clear the calipers. Y do u want a square set up.
Old 08-03-13, 08:28 PM
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4TehNguyen
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255 is way too wide for the front, 235 is probably the widest you can get for the fronts
Old 08-03-13, 08:37 PM
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MK4Sup_isF
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I'm on 19x10 +30 with 245 35 for my front and I still have plenty of room to go up to 255. You will be just fine. I have seen guys with 19x10 +33 on 255 for the front
Old 08-03-13, 08:55 PM
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Originally Posted by Murph145
Yea that should fit as long as they clear the calipers. Y do u want a square set up.
No reason other than I just like the concavity of the 9.5". I'm still not sure, I may end up going staggered with the 8.5 up front.
Old 08-03-13, 09:10 PM
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255s are an easy fit up front! I had 20x9.5s with 255s up front as well as 19x10 +33 up front with 255/35s and no issues. With 18s it will be even easier.
Old 08-03-13, 10:09 PM
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Murph145
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^ yea nothing hard about 255s up front
Old 08-03-13, 10:23 PM
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CalitriSC
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^ No sir, i could have had 265s up front lol.
Old 08-03-13, 10:39 PM
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9.5 +38 is no problems with the guards
Old 08-04-13, 10:38 AM
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What do you guys think about these specs being flush? And by flush I mean just straight even with the fender, no pokage or anything.
Old 08-04-13, 10:55 AM
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Originally Posted by Reaper21
What do you guys think about these specs being flush? And by flush I mean just straight even with the fender, no pokage or anything.
it's depending on how low you are also, due to natural negative camber as you lower your car. You will be fine with 9.5 +38. I'm on 10 +30 front with -2.7 camber and my wheels sit pretty much flush. Guys rolling with 10 +25 poke slightly
Old 08-04-13, 10:59 AM
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BTW, 255 35 18 tires will change your overall rolling diameter to 25.1", that is over 1" smaller than stock of 26.2". I don't think that is a goood idea. Suspension and ABS are going to be affected.
Old 08-04-13, 11:02 AM
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Thanks for the info MK4 - I'm actually going to be swapping my suspension to BC coils. How is it going to affect the ABS?

I knew they are going to have a smaller diameter but I didn't really think that would be a problem for anything.

Last edited by Reaper21; 08-04-13 at 11:46 AM.
Old 08-04-13, 11:59 AM
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Pretty simple, get 255/40/18.

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