AFM/DFM Disabler for GM V6 V8 Engines - Compatible with V6 & V8 Active or Dynamic Fuel Management Motors (Cars, Trucks, and SUVs) Replaces RA003 AFM Disable Device; Not compatible with 2019+ Silverado and Sierra with 5.3L/6.2L engines; Not suitable for 2022 Refresh model trucks or SUVs AFM/DFM Disabler allows your V6 or V8 GM vehicle to operate in full cylinder mode at all times, providing more consistent power delivery and reduced throttle lag. Does not modify the factory ECU program and leaves no trace of modification when removed Plug and Play – Easy to install, saving time. Simply plug the AFM disabler into the OBD port. Four lights will flash in sequence, and only one light will remain on when stable, indicating normal connection Constructed from high-quality materials for strong and sturdy performance under extreme temperatures and pressure. Features soft-glow LED bulbs that are not harsh on the eyes during nighttime driving Suitable for a wide range of vehicles Note: Label text on the product is randomly assigned and cannot be customized. Actual product may vary slightly in appearance or color Color: Black Material: Plastic Package Contents: 1 x Disabler (Other items not included) Note: Lighting effects and display settings may cause slight color differences between the image and the actual item. Measurement tolerance: +/- 1-3 cm