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Old 09-04-2017, 10:37 PM   #7001
confuzled
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Is this fitment too aggressive for the WRX?
Wheels are Cosmis MR7

18x10 +25 or 18x9+25
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Last edited by confuzled; 09-04-2017 at 10:42 PM.
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Old 09-05-2017, 01:31 PM   #7002
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Quote:
Originally Posted by confuzled View Post
Is this fitment too aggressive for the WRX?
Wheels are Cosmis MR7

18x10 +25 or 18x9+25
18x10 +25 will require fender mods or lots of camber/stretched tires to avoid rubbing. So yes this is too aggressive.

18x9 +25 should be fine. It will have roughly the same poke as 18x9.5 +38, which a lot of people are running on here.

This guy is running Cosmis Xt-005r in 18x9 +25


Last edited by WRBloo; 09-05-2017 at 01:39 PM.
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Old 09-05-2017, 02:14 PM   #7003
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Originally Posted by WRBloo View Post
18x10 +25 will require fender mods or lots of camber/stretched tires to avoid rubbing. So yes this is too aggressive.

18x9 +25 should be fine. It will have roughly the same poke as 18x9.5 +38, which a lot of people are running on here.

This guy is running Cosmis Xt-005r in 18x9 +25

Thank you!


I looked up that guys set-up on Customoffsets. Would a tire stretch be required to run this set-up?

Instead
Would I be able to run a similar tire sizing that a 18x9.5 +38 would run?
265/35/18 or 255/35/18?

Last edited by confuzled; 09-05-2017 at 02:59 PM.
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Old 09-05-2017, 05:53 PM   #7004
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Would there be a lot of "poke" running 18X9.5 +22 Offset? I have a 2017 STI and looking at the Volk ZE40. Lowered on Swift Springs, I do not mind rolling the fenders but I rather not pull.
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Old 09-05-2017, 06:09 PM   #7005
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Quote:
Originally Posted by Tsixtial View Post
Would there be a lot of "poke" running 18X9.5 +22 Offset? I have a 2017 STI and looking at the Volk ZE40. Lowered on Swift Springs, I do not mind rolling the fenders but I rather not pull.
Yes, that will poke out about 15mm depending on tire size and camber. You would be better off with the 18x10.0 +35 if you already rolled your fenders. That will not require a pull. We have both Bronze and Gunmetal in stock They also clear STI Brembos no spacer.
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Old 09-05-2017, 06:21 PM   #7006
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Quote:
Originally Posted by WRBloo View Post

18x9 +25 should be fine. It will have roughly the same poke as 18x9.5 +38, which a lot of people are running on here.


I don't exactly think that's sound math. 0.5" is about 13 mm, so an 18x9 +38 wheel would sit 6.5 mm inward from the common 18x9.5 +38 (extra width is added equally on each side of the wheel). As a result, the corresponding 18x9 +25 wheel will sit 13 mm and 6.5 mm outward of the 18x9 +38 and typical 18x9.5 +38, respectively.

Long story short:
18x9 +25 is equivalent to 18x9.5 +31 / +32 in regard to the outside edge of the wheel
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Old 09-05-2017, 08:49 PM   #7007
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Originally Posted by aniltip View Post
I don't exactly think that's sound math. 0.5" is about 13 mm, so an 18x9 +38 wheel would sit 6.5 mm inward from the common 18x9.5 +38 (extra width is added equally on each side of the wheel). As a result, the corresponding 18x9 +25 wheel will sit 13 mm and 6.5 mm outward of the 18x9 +38 and typical 18x9.5 +38, respectively.

Long story short:
18x9 +25 is equivalent to 18x9.5 +31 / +32 in regard to the outside edge of the wheel
So going by this, fitment wouldn't be an issue right? 6.5mm about a quarter inch only. I see that people running 18x9 +25 running stretched tires. Would this be necessary for clearance?
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Old 09-06-2017, 11:58 AM   #7008
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Quote:
Originally Posted by confuzled View Post
So going by this, fitment wouldn't be an issue right? 6.5mm about a quarter inch only. I see that people running 18x9 +25 running stretched tires. Would this be necessary for clearance?


6.5mm can be the difference of hitting the fender versus not or in other cases the difference between rubbing on the strut on the inside.

My opinion would decide on what size tire you want to run, then understand the wheel sizes that are appropriate for that and then pick a wheel that falls inside the specs that you don't have to roll or pull your fenders or run -3 camber.

If you just are in love with the wheels go for it. Get camber bolts up front, lower control arms in the back and play around with it to get it to fit, but I would not run anything less than a 245/40 tire on the 18x9 to make it fit.
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Old 09-06-2017, 01:28 PM   #7009
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Originally Posted by Kami Speed View Post
Yes, that will poke out about 15mm depending on tire size and camber. You would be better off with the 18x10.0 +35 if you already rolled your fenders. That will not require a pull. We have both Bronze and Gunmetal in stock They also clear STI Brembos no spacer.
18x10 +35, and if you run a 265 or wider tire, you are gonna rub on your bumper...even if you pulled the heck out of the rear fenders. I know. I ran a 17x10 +38 with 275 tires. Fender was fine...bumper was not. And, there is no way to move the bumper where it meets the rear fender.

Rear camber is -1.4 because I don't need any more camber back there lest I want the car to push.

Guys, be sensible.
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Old 09-06-2017, 02:00 PM   #7010
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Originally Posted by fredrik94087 View Post
18x10 +35, and if you run a 265 or wider tire, you are gonna rub on your bumper...even if you pulled the heck out of the rear fenders. I know. I ran a 17x10 +38 with 275 tires. Fender was fine...bumper was not. And, there is no way to move the bumper where it meets the rear fender.

Rear camber is -1.4 because I don't need any more camber back there lest I want the car to push.

Guys, be sensible.
Through experience that setup has been ok with the right amount of camber. Probably around -2.5. The OP was looking at the 18x9.5 +22 which I assume he wants the Face 3 concave. So was giving the next best option which is an easier fit of 18x10.0 +35 which has the same concave face look.
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Old 09-06-2017, 02:17 PM   #7011
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Originally Posted by fredrik94087 View Post
18x10 +35, and if you run a 265 or wider tire, you are gonna rub on your bumper...even if you pulled the heck out of the rear fenders. I know. I ran a 17x10 +38 with 275 tires. Fender was fine...bumper was not. And, there is no way to move the bumper where it meets the rear fender.

Rear camber is -1.4 because I don't need any more camber back there lest I want the car to push.

Guys, be sensible.
Quote:
Originally Posted by Kami Speed View Post
Through experience that setup has been ok with the right amount of camber. Probably around -2.5. The OP was looking at the 18x9.5 +22 which I assume he wants the Face 3 concave. So was giving the next best option which is an easier fit of 18x10.0 +35 which has the same concave face look.
Yep that setup will be totally fine with a roll. I've seen 18x10 +30 be fine with no roll and on coils
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Old 09-06-2017, 02:35 PM   #7012
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Originally Posted by wv2.5i View Post
6.5mm can be the difference of hitting the fender versus not or in other cases the difference between rubbing on the strut on the inside.

My opinion would decide on what size tire you want to run, then understand the wheel sizes that are appropriate for that and then pick a wheel that falls inside the specs that you don't have to roll or pull your fenders or run -3 camber.

If you just are in love with the wheels go for it. Get camber bolts up front, lower control arms in the back and play around with it to get it to fit, but I would not run anything less than a 245/40 tire on the 18x9 to make it fit.
Gotcha, it'll be my first set-up of aftermarket wheels so I don't want to make a mistake on sizing and fitment.
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Old 09-06-2017, 05:12 PM   #7013
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Originally Posted by confuzled View Post
Gotcha, it'll be my first set-up of aftermarket wheels so I don't want to make a mistake on sizing and fitment.


I'll be honest you really don't need anything more than a 245 with either an 8.5 or 9 inch wheel. Unless you want to track it..just my opinion. And if you are planning on keeping stock suspension all the more reason to keep it sensible.
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Old 09-06-2017, 06:27 PM   #7014
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I'll be honest you really don't need anything more than a 245 with either an 8.5 or 9 inch wheel. Unless you want to track it..just my opinion. And if you are planning on keeping stock suspension all the more reason to keep it sensible.
So just keep it 245/40/18 is your recommendation?

I was planning on lowering in the future. Either RCE Yellows for a little bit then going into Fortune Autos later down the line or just going with Airlift instead of the coilovers.
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Old 09-06-2017, 07:04 PM   #7015
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Originally Posted by JonAvalon View Post
Avid.1 AV-20 Matte Bronze
18x8.5 +33
Tires: 245/40
Stock suspension





Those look really good fitment wise. I was gonna go with the 9.5" but I think I'm gonna just stick with the 8.5". Did you have to get a different set of lugs to work with these wheels? This is my first set of aftermarket wheels and not sure if they are lug centric or hub centric.
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Old 09-06-2017, 07:38 PM   #7016
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Originally Posted by confuzled View Post
So just keep it 245/40/18 is your recommendation?



I was planning on lowering in the future. Either RCE Yellows for a little bit then going into Fortune Autos later down the line or just going with Airlift instead of the coilovers.


Well I think if you aren't sure what your suspension future is I'd say stay with the 245/40 with and a 18x8.5 +33 to +48 is a good range. Will not have a ton of poke and will give you more room for error no matter what road you take. Also prevent from excessive camber or fender rolling problems.

Don't know what style you are into but just about every wheel manufacturer has specs in that range and those look good stock height or dropped.

I hope it helps...
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Old 09-06-2017, 08:04 PM   #7017
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at stock height your car WILL LOOK RETARDED with 18x10 +30 wheels.

you will be at full on mexi-poke status. people like me will make fun of you and point when you drive by. at most a 17x10 +38 with a 275/40 or 18x9.5 +38 with a 265/35 max. there are plenty fitments in between but that would b what i consider the maximum fitment without running into issues. at stock height. once lowered decrease widths accordingly.

your overall diameter at stock height needs to be less than 25.7 in. so thats a 275/40/17 or 245/40 18 etc.

"will they fit" or some other tire calculator may be of use to you. also google 2015 wrx fitment. if the site is still up there are lots of pictures of different setups.

whatever size you choose the overall diameter needs to be within 2% of stock if you want your speedo to read close to what it should be.

Last edited by powder8; 09-06-2017 at 08:11 PM.
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Old 09-07-2017, 11:02 AM   #7018
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Originally Posted by powder8 View Post
at stock height your car WILL LOOK RETARDED with 18x10 +30 wheels.

you will be at full on mexi-poke status. people like me will make fun of you and point when you drive by. at most a 17x10 +38 with a 275/40 or 18x9.5 +38 with a 265/35 max. there are plenty fitments in between but that would b what i consider the maximum fitment without running into issues. at stock height. once lowered decrease widths accordingly.

your overall diameter at stock height needs to be less than 25.7 in. so thats a 275/40/17 or 245/40 18 etc.

"will they fit" or some other tire calculator may be of use to you. also google 2015 wrx fitment. if the site is still up there are lots of pictures of different setups.

whatever size you choose the overall diameter needs to be within 2% of stock if you want your speedo to read close to what it should be.

How do you think 18x9.5+40 offset with 255/35/18s will look on a stock height 17' STi?

Im bout to pull the trigger on the Enkei NT03RRs.

Quote:
Originally Posted by Kami Speed View Post
One of the first 15+ I have seen with these on! What do you all think?! One of our customers cars here locally in FL

18x9.5 +40 NT03RR Matte Gunmetal

Clears STI Brembos, no spacers. He is also running 265s.


I'm bout to grab these too. Is that setup on stock height? Any fender work needed?
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Old 09-07-2017, 02:17 PM   #7019
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Originally Posted by Kaii View Post
How do you think 18x9.5+40 offset with 255/35/18s will look on a stock height 17' STi?

Im bout to pull the trigger on the Enkei NT03RRs.



I'm bout to grab these too. Is that setup on stock height? Any fender work needed?
all depends on tire specs, 255/35 on stock height shouldn't have issues, let me know if you need a price!
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Old 09-07-2017, 02:35 PM   #7020
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all depends on tire specs, 255/35 on stock height shouldn't have issues, let me know if you need a price!
Is the pic you posted of a lowered STi?
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Old 09-07-2017, 05:47 PM   #7021
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Originally Posted by Kaii View Post
How do you think 18x9.5+40 offset with 255/35/18s will look on a stock height 17' STi?

Im bout to pull the trigger on the Enkei NT03RRs.



I'm bout to grab these too. Is that setup on stock height? Any fender work needed?
that would look just fine. im about to grab the regular nto3s in 18x9.5 +40 for winter tire rack has them for $1140 +shipping. i say that aint bad.
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Old 09-08-2017, 03:54 AM   #7022
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Old 09-08-2017, 05:21 AM   #7023
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Is the pic you posted of a lowered STi?
that car is def. lowered. most likely coils

edit: the white sti for clarification
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Old 09-08-2017, 10:28 AM   #7024
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that would look just fine. im about to grab the regular nto3s in 18x9.5 +40 for winter tire rack has them for $1140 +shipping. i say that aint bad.
Hey, I thought those wouldn't clear our brakes without spacers?
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Old 09-08-2017, 03:58 PM   #7025
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Hey guys, thinking of running a 18x10 +40 w/ 265/40 on stock '15.
Ive read that some people say it wont rub without rolling fenders, but they have coilovers. Will the wheels actually tuck in further with coilovers? Am I likely to rub on bumbs?
Thanks
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