Seems to do what it promises. I've been using it for a month and no problems. I used to average 17mpg in my 2018 Silverado. Now I get 16.9 mpg compared to my last two tanks. In my opinion, this is a small price to pay for improved throttle response and fewer shifts into 4-cylinder mode. It actually drives me a little crazy to think that GM uses AFM in all of these engines and it doesn't even add mileage for the average consumer. I would go to a performance tuner but didn't want to risk my warranty. My only suggestion is to cut out the LEDs. I really don't need my legs that glow blue at night. I'm thinking about gluing them with duct tape.
Upgrade Your Driving Experience With Lunsom'S Automatic Shift Knob: High-Quality Metal Car Shifting With Push Button & Long Stick Gear Head In Black
38 Review
820Pcs Car Push Retainer Clips & Fasteners Assortment - Ford GM Toyota Honda Chrysler BMW Benz Nissan Subaru Audi Mazda
32 Review
2007-2017 Jeep Wrangler JKU 4 Door Sunshade Mesh Top Cover - Durable UV Protection With US Flag Design - Voodonala
31 Review
25Pcs Fender Liner Screws For Toyota Avalon Camry Corolla Scion Lexus - OEM #90159-60498
35 Review