Flowmaster American Thunder Cat-Back Exhaust System For 99-07 GM 1500 4.8L/5.3L 2001-2007 GMC Sierra 2500 These 5150 Hyper Color Whips

These 5150 Hyper Color Whips are the brightest whips on the market

Up-Pipe gaskets not included

75”) is larger than stock to allow for increased flow and optimized surge port

PPE solves the GM Duramax L5P complete oil drainage problem

BD offers units for Dodge

Flowmaster American Thunder Cat-Back Exhaust System For 99-07 GM 1500 4.8L/5.3L 2001-2007 GMC Sierra 2500 These 5150 Hyper Color WhipsFor the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat back exhaust system provides. D. O. S. S. (Dual out same side) systems are the perfect choice. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The exhaust system is constructed from 3. 00 inch mandrel bent aluminized steel