Melling Now Offering AFM Delete Kits with RTD Tuner for GM LS/LT Engines

Melling is excited to officially launch our AFM Delete Kits with RTD Tuner designed specifically for GM LS/LT engines! After debuting these new kits at SEMA 2025, we’re proud to share that they were selected for the SEMA Media’s Choice Award—a recognition of innovation, quality, and performance.

Available Kits

MDK300-HPT

For GM 5.3L engines: LC9, LH6, LMG, LY5

MDK400-HPT

For GM 5.3L engines: L82, L83, L8B

These complete packages offer an all‑in‑one solution for removing Active Fuel Management (AFM) while providing the proper calibration through the included RTD Tuner—ensuring performance, reliability, and worry‑free installation.

Resources

For full details, installation guidance, and product demonstrations, check out the links below:

• PDF Instructions
• YouTube Overview Video

Please reach out to calibrationsupport@melling.com for additional questions.