This aFe POWER turbo downpipe is engineered to outflow and outperform the restrictive, factory downpipe on the 2015 - 2016 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 Instructions


This Part Fits:

Year	Make	Model	Submodel
2015-2016	Chevrolet	Silverado 2500 HD	High Country
2015-2016	Chevrolet	Silverado 2500 HD	LT
2015-2016	Chevrolet	Silverado 2500 HD	LTZ
2015-2016	Chevrolet	Silverado 2500 HD	WT
2015-2016	Chevrolet	Silverado 3500 HD	High Country
2015-2016	Chevrolet	Silverado 3500 HD	LT
2015-2016	Chevrolet	Silverado 3500 HD	LTZ
2015-2016	Chevrolet	Silverado 3500 HD	WT
2015-2016	GMC	Sierra 2500 HD	Base
2015-2016	GMC	Sierra 2500 HD	Denali
2015-2016	GMC	Sierra 2500 HD	SLE
2015-2016	GMC	Sierra 2500 HD	SLT
2015-2016	GMC	Sierra 3500 HD	Base
2015-2016	GMC	Sierra 3500 HD	Denali
2015-2016	GMC	Sierra 3500 HD	SLE
2015-2016	GMC	Sierra 3500 HD	SLT