BOOST AFM & DFM Disabler - V8/V6 Mode 100% of the Time - Made in the USA

Amazing plug and play product it is designed, packaged and shipped in America. I installed on a 2019 Silverado 5.3l. with an 8 speed trans. with 30,000 miles. Besides deleting the DFM (which is beneficial for engine longevity) which was the primary goal, the throttle response is more crisp. The transmission no longer seems to stutter and I no longer have to disengage the auto stop feature. Great product. Brian in Idaho.

This Boost DFM disabler works exactly as advertised. Also a feature that isn’t talked about is that it also disables the auto stop which I really like. I guess that’s all tied in with the DFM but I’m excited that it does. I’ve been using the device for about a week now and I absolutely love it. Throttle response is better, my truck idles smoother, and I can really tell a difference while towing in the throttle. I tow about 5000 pounds every day with my 22 Silverado. My fuel mileage has stayed the same. Pay no attention to the average in the picture because I stated before I tow a lot with my truck. But if you’ll look at the real time fuel economy, you’ll see that it was showing 21 MPG. That was at 65 down the highway with a strong headwind and no trailer. I didn’t like the way that it was gonna stick out past the dash so I bought an extension and it works well with it. I would highly recommend this product to anyone looking to disable their DFM.

I bought the Boost AFM/DFM disabler or my father's 2014 GMC Sierra Z71 5.3 L crew cab I chose this product because of the reviews and being 100% American made. This product is extremely good quality we installed it right away in my father's truck the results were immediate and there was a 100% Improvement all the way around with the performance of the truck the throttle response was immediate all kinds of power and the transmission shifted better than it ever did before he is extremely happy with this product if you want your Chevy or GMC to perform better motor wise and transmission wise and to prevent possible lifter failure I would recommend this product 100%. I definitely would recommend this product because when it switches from V4 mode to V8 mode the transmission could develop a shutter which it did in my father's truck we took it to a local transmission shop in my area and he told us one of the clutches in the torque converter was slipping a little bit and said it was more than likely due to the switching from V4 to V8 mode so we got the transmission flushed with new fluid installed and a new filter plus one quart of Lucas transmission fix to help with better lubrication or the transmission parts. Since installing the Boost afm/dfm disabler my father's truck is working perfectly motor runs great And transmission shifts Perfectly. I 100% RECOMMEND THIS PRODUCT. I even told some of my co-workers about this product and Friends and they already purchased this product or are in the process of getting ready to purchase this device. It's cheaper than the range Technologies product but don't let that scare you about this boost afm/dfm disabler the quality is just as good and it does exactly what it says it will do.

Checked out the product extensively before I bought it and convinced my son to buy one too. It worked just as advertised, stopped v4 activation, better acceleration and no problems. It is supposed to stop the lifters from going bad and save the engine. That very thing happened to someone I know.

Works perfectly as advertised. No more hesitation going from 4 cylinders back to 6, no longer feels like transmission shudder due to staying in 6 cylinder mode. Also, while I have button to turn off auto stop, no longer need to push and or frustrated I forgot to turn off.

Installed on my 2018 Chevy Tahoe about a week ago. So far better throttle response and smoother shifting. No more clunky feeling in the drive train. Really hated that. Now just push the throttle and the 5.3 comes to life the way a v8 should . Great purchase just plug it in and you’re golden. Made here in the US and you just unplug it when you take your rig in for service 👍🏻

Heard about the lifter issues after buying my truck so I decided to try this out. Working great so far. Eliminated V4 on my 2019 GMC canyon. Little better throttle response as well. Glad it’s American made also!

It worked GREAT...one added bonus to be aware of is that now on the dashboard is says V8. I'm assuming it changed as the lifters engaged or disengaged. Keeping my fingers crossed that this makes my engine last longer.So far VERY happy! THANK YOU...for piece of mind it's worth the investment.