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Old 09-19-2009, 01:36 PM   #7
john98ssfbody
 
Drives: 2002 White SS Camaro
Join Date: Sep 2009
Location: Washington
Posts: 5
If you install the complete system with all the o2 sensors in place, you should be OK. The system shouldn't set any DTCs at all. While a tune will optimize the headers it really isn't necessary.
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