Gadon™ AFM/DFM Disabler

I purchased the arm/dfm disabler for my 2018 gmc sierra alt 5.5 with 150kms on it. The exhaust flapper had came loose and was rattling around in the muffler. I decided to go with a dynomax muffler and tailpipe. The disabler takes away the horrible drone when it would switch to 4 cylinder. The truck seems More responsive and appears to have no issues. I drive it regularly but it has sat for a couple days and started right up without any drain issues. Time will tell what the fuel mileage difference is but so far it’s the same as before.

Appears to be working as advertised. Engine seems to be running smoother. The hesitation seems to have gone also.

Easy as 1,2,3! Plugged it in and right away stoped going from 4 to 8 cylinder and now it stay only at 8.