717911 Flowmaster Flow FX Direct Fit Dual Mode Muffler with Active Valve
Fits 2019-2024 (New body) GM Silverado/Sierra 1500 5.3L, 2/4 WD, All Wheelbases. - Aggressive to moderate sound;Deep Performance Tone from "Straight-through" FlowFX Muffler; Max Dyno Gains of 9 hp and 11 lb.ft. of Torque; Features Flowmasters W.A.V.E. Technology; Very Aggressive Active By-Pass Sound; Mandrel-bent Stainless Steel Tubing; Wireless Controlled Actuator Motor; Detailed Installation Instructions; Direct-fit Replacement Muffler; Includes a High Quality Valve; Stainless Steel Construction ; Includes Two Key Fobs;
