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Thread: Question: Turning off egr
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Old 11-03-2018, 02:01 PM   #1 (permalink)
Low Boost
Join Date: Feb 2016
Posts: 6

Turning off egr

When turning off EGR onl DURAMax do I still have to use def

2016 GMC denali 3500 DRW 4x4 Duramax

Last edited by OkDually; 11-03-2018 at 02:26 PM. Reason: prefix
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