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Old 08-02-2005, 09:53 PM   #1
Mrfairlady
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Member#: 67338
Join Date: Jul 2004
Chapter/Region: South East
Location: Matthews,NC
Default Tire Choice for STi : 17x8.5

well I've been reading up in my Hyper Rev as well as seeing what others have run.
I notice that alot of the Japanese Tuner companys use a 245/40 on thier Impreza's w/ that Rim size or even 9"wide.
I hear that is the Perfect Replacement for Stock Rolling diameter,only a little wider to get use of a 8.5" wide wheel?
I have TEIN flex and they are set to the Tein Measurements (Slammed) and still think a 245/40 would fit but someone said NO,..Thats still to wide for a Lowered STi w/ 8.5's?

anyway..what size should I go for that would keep rolling stock Diameter w/o a Huge Sidewall but enough to not have to roll fenders?

I guess bigger would make the Gears longer and smaller would make quicker gears?
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Old 08-02-2005, 10:08 PM   #2
import111
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Join Date: Sep 2002
Chapter/Region: SWIC
Location: Tucson, Arizona
Vehicle:
2010 Evo GSR
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255/40/17 is the same diamiter as the stock 225/45/17. I would go with that. Since U have an 04 STI U might need to roll the fenders a little.

Ryan
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Old 08-03-2005, 12:48 AM   #3
gregr01
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Location: Phoenix AZ
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04 STi
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Depends on your wheel's offset, and the particular tire you choose.

I have a couple of sets of +48 17x8.5s. With Eibach springs I've rubbed using shaved 225/45s (Pirelli PZero System Asimmetrico) and not rubbed using 245/40s (Pirelli PZero Nero M&S).

I rolled the rear fenders and that solved the rear rubbing issue, though the 225s still rubbed on the front innerfender liner. Raise your height a bit and you shouldn't have problems, depending on offset.
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