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Old 01-20-2014, 02:24 PM   #3
AtlasMick
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Join Date: Jan 2013
Drives: FR-S 2013 Asphalt
Location: Lexington, KY
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I used Rimsntires.com calculator. I got these figures, for wheels. I don't know how much further you could go towards the suspension before rubbing air suspension components. Maybe someone with Airrex or Air Lift could chime in?

100 tire choices (215/45R17 +0% 97mm sidewall *Stock*
21 tire choices (285/30R18) +0.5% 86mm sidewall
19 tire choices (295/30R18) +1.5% 89mm sidewall
3 tire choices (315/25R19) +2.3% 79mm sidewall
12 tire choices (335/30R18) +5.3% 101mm sidewall
21 tire choices (305/30R19) +6.5% 92mm sidewall
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