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Old 11-13-2017, 11:01 AM   #7
ProCharger
 
Drives: Many C7's
Join Date: Apr 2014
Location: Kansas City
Posts: 573
Only people with Meth or LT4 fuel systems, are the ones I see running a 3.7 pulley.
I am assuming it was speced that way because its a "tuner kit" and had a requested boost level by the dealer.
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