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Jasper Expands GM Gen V AFM and AFM/DFM-Delete Availability

JASPER expands GM Gen V AFM & DFM-Delete engine options for late-model SUVs and trucks, backed by a 3-year/100K-mile warranty.

September 4, 2025
GM Gen V 5.3L DFM-Delete Engine from Jasper Engines & Transmissions, now available for late-model GM applications.

Caption:
Jasper Engines & Transmissions has expanded availability of GM Gen V AFM and AFM/DFM-Delete engines, including the GM Gen V 5.3L DFM-Delete engine shown here.

Photo: Jasper Engines & Transmissions | Work Truck 

1 min to read


Jasper Engines & Transmissions has expanded the availability of GM Gen V AFM and AFM/DFM-Delete engines for late-model applications.

“These engines are available with an AFM-Delete, or second-generation DFM-Delete option, removing the cylinder deactivation technology,” said Brad Boeglin, JASPER New Product Development Group Leader. “Due to increased security measures in these recent applications, customers using AFM-Delete and DFM-Delete engines will be required to send their ECM in for an unlocking procedure before any modifications can be made.”

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Available Engines:

  • GM 6.2L DFM-Delete
    • 2021-2024 Escalade, Suburban, Tahoe, & Yukon
    • 2022.5-2024 Sierra/Silverado 1500

  • GM 5.3L DFM-Delete
    • 2021-2024 Suburban, Tahoe, & Yukon
    • 2022.5-2024 Sierra/Silverado 1500

  • GM 4.3L AFM-Delete
    • 2019-2021 Silverado/Sierra

  • GM 4.3L AFM
    • 2019-2021 Silverado/Sierra

“JASPER has partnered with HP Tuners, an industry leader in calibrations, to help us offer a delete option for these late-model Global B applications,” Boeglin added. “Global B applications are currently 49-state compliant.”

The GM Gen V AFM and AFM/DFM-Delete engines are covered by a nationwide, transferable parts and labor warranty of up to three years or 100,000 miles. A full warranty disclosure is available on JASPER’s website or upon request.

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