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Old 10-02-2012, 01:58 PM   #1176
Scooby Newbie
Member#: 275586
Join Date: Mar 2011
Chapter/Region: SCIC
Location: Torrance, CA
2011 WRX Sedan
290whp 340wtq Cali 91oct


Originally Posted by 44r0nm4n View Post
We have not yet tried 285/35R18, for a couple of reasons. One is that the tire is 2.1% larger than the stock 2011+ WRX tire, slightly over our 2% rule of thumb in terms of variance from stock.

How did you compute for the 2.1% variance comparing 285/35R18 vs 235/45R17 (stock)? Curious as to how I could use this as a benchmark. Thanks!

plug in OEM tire size then plug in whatever tire size you choose and it'll tell you how much bigger or smaller the tire is compared to OEM.
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