07-23-2021, 08:08 PM
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#28 (permalink)
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A True Z Fanatic
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 70
Posts: 35,568
Drives: 2011 Nismo GM 6M
Rep Power: 2684440
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Remove the tune and see if the problem is still there.
Do you have test pipes?
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