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Old 07-01-2008, 01:21 PM   #1
BreaknLoose
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Default 18x9's

is it possible to fit 18x9's on an 04 wrx with out modifying the fenders?
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Old 07-01-2008, 02:54 PM   #2
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depends on the wheels offset/tire size and suspension setup. but generally speaking, they wont fit with unmodified fenders.
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Old 07-01-2008, 11:47 PM   #3
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well right now i just have the stuck struts with eibach springs, but i will be getting bilstein coils relatively soon, as for the offset, well which ever one would fit, the wheel i like is 18x9 +30, idk if that will work, but im would rather just look at a diff. wheel than get all into fender modding
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Old 07-02-2008, 07:54 AM   #4
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That would stick out pretty far dude unless you decide to run some massive camber. Even then you'll most likely stick out in the rear.
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Old 07-02-2008, 09:40 AM   #5
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Thats is a pretty common size but it does require fender rolling.
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Old 07-02-2008, 11:20 AM   #6
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Definitely Fender Rolling and you will need to run about 2* Neg. Camber in the rear. Also good thing you got coilovers since they are a lot stiffer, lot less travel than springs, so you can go lower without fearing hitting a bump and cutting a tire lol. MIGHT need slight fender pull in the rear deciding on tire size.
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Old 07-02-2008, 11:36 AM   #7
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is there any offset that would avoid rolling or is it inevitable?
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Old 07-02-2008, 01:43 PM   #8
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maybe an offset in the 40's with some aggressive camber but then you will have to worry about inner clearance.
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Old 07-04-2008, 07:43 PM   #9
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Quote:
Originally Posted by BreaknLoose View Post
is there any offset that would avoid rolling or is it inevitable?
18x8.5, +38.
That's about as aggressive as you want to go with a streetable camber, and very rear minor fender mods that you could do at home.
If your coilovers are stiff, you may be able to go +35.

It all comes down to paying to play with wide and low.
Coilovers, rear fender mods, and camber are your friend if you want to safely go 18x9", and still run daily.



good luck.
18x9" looks so cool.
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Old 07-07-2008, 10:57 AM   #10
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Quote:
Originally Posted by hypa View Post
18x8.5, +38.
That's about as aggressive as you want to go with a streetable camber, and very rear minor fender mods that you could do at home.
If your coilovers are stiff, you may be able to go +35.

It all comes down to paying to play with wide and low.
Coilovers, rear fender mods, and camber are your friend if you want to safely go 18x9", and still run daily.



good luck.
18x9" looks so cool.
this is true for an 05+ STi, not so much for a WRX.

i've seen a WRX rub with a 235/45/17 on a 17x8 +45mm and RCE Yellows.

to run a 9" wheel on a WRX or 04 STi you need to modify the rear fenders or have very stiff suspension and a high ride height. (even if you were running a 225/40/18 tire).

find a good fender roller local and roll the fenders, if done right you wont have any issues.
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Old 07-07-2008, 07:08 PM   #11
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Quote:
Originally Posted by WRX8XB View Post
this is true for an 05+ STi, not so much for a WRX.

i've seen a WRX rub with a 235/45/17 on a 17x8 +45mm and RCE Yellows.

to run a 9" wheel on a WRX or 04 STi you need to modify the rear fenders or have very stiff suspension and a high ride height. (even if you were running a 225/40/18 tire).

find a good fender roller local and roll the fenders, if done right you wont have any issues.
That is interesting. What is the major difference between an '05 WRX vs. an '05 STi as to clearance?
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Old 07-08-2008, 08:55 AM   #12
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Quote:
Originally Posted by jmhubbard01 View Post
That is interesting. What is the major difference between an '05 WRX vs. an '05 STi as to clearance?
about 15mm or so.

the 05 STi has a smaller "lip" under the rear fender then the 05 WRX.

the WRX can get more clearance easier then an 05 STi.

WRX just needs a roll and it will have more clearance then a stock 05 STi.

to get the same clearance on a 05 STi you have to do this...

How To: Properly Modify 05+ GD STi Rear Fenders
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Old 07-08-2008, 09:23 AM   #13
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that is good info wrx8. thx.
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Old 07-08-2008, 09:56 AM   #14
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Quote:
Originally Posted by WRX8XB View Post
this is true for an 05+ STi, not so much for a WRX.

i've seen a WRX rub with a 235/45/17 on a 17x8 +45mm and RCE Yellows.

18x8.5 +48 with 255/35/18s fit beautifully on my 04 sti with rce yellows after a mild fender roll i have about 5mm's to play with to the outer fender, but inner clearance is about 1-2mm max

Quote:
Originally Posted by WRX8XB View Post
to run a 9" wheel on a WRX or 04 STi you need to modify the rear fenders or have very stiff suspension and a high ride height. (even if you were running a 225/40/18 tire).
does this apply to 17x9 or 18x9 with something closer to a +40 offset? +35 would require rear camber bolts and a more aggressive fender roll.
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Old 07-08-2008, 10:32 AM   #15
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it applies to all 9" wheels.

i've seen a WRX rub with an 8" +45mm and a 235/45/17 tire on RCE yellows.

i've also seen an 04 STi with a stiff enough suspension and high enough ride height to run 17x10s and 275s.

the 9" +40mm would def require a fender roll in the rear of a wrx, the +35mm would be the same with more camber.
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