Review on GTMOTOR AFM RA003: The Ultimate Fuel Management Disabler for GM Vehicles by Brad Davis

I am writing a review about this ACM blocker. That's $40 less than the well-known brand. The only reason I got this was because I had to replace the #1 spark plug about every 6-8 months. Guess AFT disables 1, 4, 6, and 7. I've also heard that cylinder #7 has stopped working over time and it costs about $3000-$4000 to fix. I figured if I could leave the truck in V8 mode all cylinders would work and hopefully no more clogged spark plugs. while the module is running. Roll out, descent, steady cruising. Always stays in "V8 mode". I am happy.