Signature Series Exhaust System Fits 2014-2019* (Classic Body) GM 1500 4.3L/5.3L, 304 Stainless Steel, Single Exit Exhaust - Flowmaster - 737857

Flowmaster's Signature Series Cat-back exhaust system for 2014-2019*(*Classic body 5.3L, 4wd w/143.5-inch wb) GM Silverado/Sierra 4.3L and 5.3L engines. This performance exhaust system fits both 2/4 Wheel drive models with 143.5 and 153-inch wheelbases and is manufactured from brushed 304 stainless steel for years of trouble-free service and highend good looks.

This premium exhaust system is TIG welded for a stronger, more precise weld that looks as good as this system sounds. Features include a 3.00-inch inlet pipe leading into a TIG welded 304 stainless steel Signature Series straight-through muffler for great sound and maximum performance. The single 3.00-inch mandrel-bent tailpipe exits out behind the rear passenger side tire and is finished off with a large 4.50-inch diameter PVD coated black chrome 304S stainless steel tip, giving your Silverado/Sierra that custom look that goes hand in hand with the deep performance sound of the Signature Series muffler. Max dyno gains of 9 hp and 10 lb-ft at the rear wheels. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Includes installation instructions and all necessary hardware.


Brushed 304 stainless steel offers maximum corrosion resistance for a cleaner and more high-end appearance

TIG welding offers a more precise weld, better heat control and high-end appearance compared to MIG welding

Black chrome tips offer a stylish upscale look

Signature Series muffler offers a moderate performance tone and increased performance over the stock system

Installer friendly design allows for an at home installation

Dyno proven performance gains you can feel

Increased power and torque over the stock exhaust system

Brushed appearance removes tooling marks for a cleaner overall look