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TJay74 · 12-07-2017, 04:10 PM

The black on the pipes is normal, it is carbon deposits. Gasoline changes are responsible for this due to the winter blend of fuel.

12-07-2017, 04:10 PM	#5
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	The black on the pipes is normal, it is carbon deposits. Gasoline changes are responsible for this due to the winter blend of fuel.