Flowmaster FlowFX Dual Mode Muffler W/ Active Valve For 2019-2021 GM 1500 5.3L output shaft Conventional damping then firms up

Conventional damping then firms up during faster shaft speeds resulting in a jarring ride

2015-2017 Ford Expedition 3

|||| Provides A Custom Look & Feel

Sequential FLOW Turn Signals

Flowmaster FlowFX Dual Mode Muffler W/ Active Valve For 2019-2021 GM 1500 5.3L output shaft Conventional damping then firms upIntroducing the new FlowFX Active Dual mode muffler featuring our new W. A. V. E. Technology (Wireless Active Valve Exhaust) for all 2019 2021 GM Silverado Sierra 1500 (new body style) with 5. 3L engine. This direct fit replacement muffler has split personalities with a nice performance tone over the stock exhaust system, thanks to the Flowmaster FlowFX performance muffler. The system also features a high quality wireless controlled actuator valve on