tuning problem

Old 07-28-2014, 06:24 AM
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Join Date: Jul 2014
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Default tuning problem

Put a cold air kit with long tube headers into 2 1/2" true duals on my 2001 Sierra c3 6.0l and now getting a lean code what do I need to do to fix this problem? I have been told I need larger injectors and have my ECU remapped, is this possible for doing such a small upgrade?
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