This aFe POWER turbo downpipe is engineered to outflow and outperform the restrictive, factory downpipe on the 2011 - 2015 GM Truck with V8-6.6L (td) engine. The mandrel bent, stainless steel tubing offers smoother transition bends for increased airflow, delivering quicker turbo spool times. CNC machined V-band inlets and outlets ensure a factory style, 360-degree sealing surface. Both inside and outside surfaces of the downpipe are ceramic coated to reduce EGT's even in the most extreme environments.Installation InstructionsThis Part Fits:
Year
Make
Model
Submodel
2015
Chevrolet
Silverado 2500 HD
High Country
2011-2015
Chevrolet
Silverado 2500 HD
LT
2011-2015
Chevrolet
Silverado 2500 HD
LTZ
2011-2015
Chevrolet
Silverado 2500 HD
WT
2015
Chevrolet
Silverado 3500 HD
High Country
2011-2015
Chevrolet
Silverado 3500 HD
LT
2011-2015
Chevrolet
Silverado 3500 HD
LTZ
2011-2015
Chevrolet
Silverado 3500 HD
WT
2015
GMC
Sierra 2500 HD
Base
2011-2015
GMC
Sierra 2500 HD
Denali
2011-2015
GMC
Sierra 2500 HD
SLE
2011-2015
GMC
Sierra 2500 HD
SLT
2011-2014
GMC
Sierra 2500 HD
WT
2015
GMC
Sierra 3500 HD
Base
2011-2015
GMC
Sierra 3500 HD
Denali
2011-2015
GMC
Sierra 3500 HD
SLE
2011-2015
GMC
Sierra 3500 HD
SLT
2011-2014
GMC
Sierra 3500 HD
WT
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