American Thunder Cat Back Exhaust System

This Flowmaster American Thunder cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks and is perfect for the person looking for a moderate sound level inside the cab area, with an aggressive exterior sound with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models with 4.3L or 5.3L engines and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features include stainless steel mandrel bent tubing flowing into a Super 40 series muffler and exiting with dual 2.50-inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

This Part Fits:

Year	Make	Model	Submodel
2015	Chevrolet	Silverado 1500
2018	Chevrolet	Silverado 1500
2017	Chevrolet	Silverado 1500	Custom
2014,2016-2017	Chevrolet	Silverado 1500	High Country
2016	Chevrolet	Silverado 1500	LS
2017	Chevrolet	Silverado 1500	LS
2016-2017	Chevrolet	Silverado 1500	LT
2014	Chevrolet	Silverado 1500	LT
2014,2016-2017	Chevrolet	Silverado 1500	LTZ
2016-2017	Chevrolet	Silverado 1500	SSV
2017	Chevrolet	Silverado 1500	WT
2014,2016	Chevrolet	Silverado 1500	WT
2019	Chevrolet	Silverado 1500 LD	LT
2019	Chevrolet	Silverado 1500 LD	WT
2018	GMC	Sierra 1500
2015-2017	GMC	Sierra 1500
2014	GMC	Sierra 1500	Base
2014	GMC	Sierra 1500	SLE
2014	GMC	Sierra 1500	SLT
2019	GMC	Sierra 1500 Limited
2014	Ram	2500	Big Horn
2014	Ram	2500	Laramie
2014	Ram	2500	Laramie Limited
2014	Ram	2500	Laramie Longhorn
2014	Ram	2500	Lone Star
2014	Ram	2500	Outdoorsman
2014	Ram	2500	SLT
2014	Ram	2500	ST
2014	Ram	2500	Tradesman