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Home / Exhaust / Muffler / Flowmaster 19-25 GM 1500 5.3L FLowFX Direct Fit Active Muffler
Flowmaster 19-25 GM 1500 5.3L FLowFX Direct Fit Active Muffler
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Flowmaster

Flowmaster 19-25 GM 1500 5.3L FLowFX Direct Fit Active Muffler

PART 717911CATEGORY Muffler
$999.95
MSRP $1,124.95You save $125.00
$999.95
1
LISTED BY THE MANUFACTURER FOR

“...Technology™ (Wireless Active Valve Exhaust™) for all 2019-2026 GM Silverado/Sierra 1500 (new body style) with 5.3L engine...”

“Fits 2019-2026 (New body) GM Silverado/Sierra 1500 5.3L, 2/4 WD, All Wheelbases...”

Confirm fitment with the part number before ordering.

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Some supplier details are unavailable for this product.

Product description

Fits 2019-2026 (New body) GM Silverado/Sierra 1500 5.3L, 2/4 WD, All Wheelbases. - Aggressive to moderate sound

Flowmaster Flow FX Direct Fit Dual Mode Muffler with Active Valve

Features

Deep Performance Tone from "Straight-through" Flow FX 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

Detailed Installation Instructions

Wireless Controlled Actuator Motor

Direct-fit Replacement Muffler

Includes a High Quality Valve

Stainless Steel Construction

Includes Two Key Fobs

Manufacturer notes

Does Not Fit 2019 Classic Body.

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Muffler
UPC / barcode
700042039388
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
No
CARB acknowledgement required
No
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

Flowmaster 19-25 GM 1500 5.3L FLowFX Direct Fit Active Muffler

1925 GM 1500 53L DIRECT FIT ACTIVE

MUFF 19-26 GM 1500 5

About the manufacturer

Introducing the new Flow FX® Active Dual-mode muffler featuring our new W.A.V.E. Technology™ (Wireless Active Valve Exhaust™) for all 2019-2026 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® Flow FX performance muffler. The system also features a high quality wireless controlled actuator valve on the Power Chamber® redirecting exhaust through the turn down, giving you that deep open exhaust sound with just a push of a button. System features include mandrel-bent stainless steel construction leading into the Power Chamber, followed by a round Flow FX performance muffler that easily connects to the factory tailpipe. The Power Chamber houses a wireless controlled valve with a large 3.00-inch turndown dump style tailpipe letting everyone know who the Boss is once activated. Other system features include actuator motor, control unit, two wireless key fobs, all necessary wiring, hardware, and detailed instructions. Maximum dyno gains of 9 hp and 11 lb.ft. at the rear wheels. Note: Fits 2019 (New body) 2/4 wheel drive and all wheelbases.

Additional manufacturer information

MUFF DF ASMB

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Flowmaster 19-25 GM 1500 5.3L FLowFX Direct Fit Active Muffler | Q40 Motorsports