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Old 12-20-2012, 02:31 PM   #23
Stephen12ZL1

 
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Drives: 2012 ZL1
Join Date: May 2012
Location: Mechanicsville VA
Posts: 2,061
I run 18" simply because the tires and wheels are cheaper and the sidewall is more compliant on an 18" tire. Next time I will get the 305/45-18 vs the 305/35-18 I have now because of the height difference. The transmission sometimes gets confused because the wheel speed is different than the indicated speed and I don't have a tune to compensate for the tire swap.
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#917 A6. 10.67@126.2 1.53 60' ADM race CAI, ATI/Lingenfelter balancer (10" ring), 90mm TB, ID850s,Rotofab/Lingenfelter intercooler reservoir, Cooler Logic HX, Texas Speed 1 7/8" headers(no cats). M&H drag radials 325/45-17 & M&H 28x4.5" bias skinnies. Tuning by Frost at Performance Autosport in Richmond, VA (804) 358-2505
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