There's never been a better time to upgrade your GM truck's sound and performance. From August 3 through August 30, 2026, purchase a qualifying Flowmaster exhaust system and you'll receive a FREE Range AFM/DFM Disabler (PN RA003B)—a value of approximately $280.

Whether you're looking for the unmistakable Flowmaster tone, improved exhaust flow, or a more engaging driving experience, this limited-time offer lets you pair one of Flowmaster's most popular exhaust systems with one of Range Technology's most sought-after electronic upgrades.

The Perfect Performance Combination

A Flowmaster exhaust transforms the personality of your truck with deeper, more aggressive sound while improving exhaust flow and complementing other performance upgrades. But many late-model GM truck owners know that Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) can interrupt that experience by constantly switching between cylinder modes during everyday driving.

That's where the included Range AFM/DFM Disabler comes in.

The plug-and-play module keeps your engine operating in full-cylinder mode, helping maintain a more consistent exhaust note and eliminating the frequent transitions caused by the factory AFM/DFM system. Installation takes just seconds through the vehicle's OBD-II port, requires no permanent modifications, and can be removed at any time.

Together, a Flowmaster exhaust and Range AFM/DFM Disabler create a more consistent, enjoyable driving experience every time you get behind the wheel of your Chevy or GMC truck.

How the Promotion Works

Participating is easy:

Buy a qualifying Flowmaster exhaust system between August 3 and August 30, 2026.

Complete the online redemption form on the dedicated Flowmaster promotion website.

After your submission is verified, you'll receive a FREE Range AFM/DFM Disabler (PN RA003B).

See complete promotion details, eligibility requirements, and redemption instructions here.

Qualifying Flowmaster Exhaust Systems

This promotion applies to the following Flowmaster exhaust system part numbers:

17430, 717787, 717822, 717828, 717857, 717869, 717874, 717885, 717929, 717976, 717986, 717988, 717991, 817481, 817492, 817504, 817506, 817523, 817554, 817556, 817602, 817603, 817609, 817666, 817669, 817672, 817680, 817686, 817688, 817689, 817704, 817706, 817744, 817745, 817746, 817754, and 817916.

Don't Miss Out

With a FREE Range AFM/DFM Disabler valued at approximately $280 included with the purchase of a qualifying Flowmaster exhaust system, this is one of the best opportunities of the year to upgrade your Chevy or GMC truck.

The offer is only available August 3 through August 30, 2026, so don't wait. Pick up a qualifying Flowmaster exhaust, submit your redemption, and enjoy the benefits of two proven performance brands working together to enhance your driving experience.