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Old 11-28-2017, 05:32 PM   #9
Crash76
Team 913
 
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500
Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
Cats do not need to be off for tuning... there is no difference in afr pre or post cat
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