Range Technology V8 AFM Disable Module

brentadams646 · January 3, 2014

Would you still recommend this?

stormh2oguy · January 3, 2014

I have been using the Range V8 device in my wife's 2011 Yukon for about 8 months and also ran it in my 2012 Sierra before I traded it last year. It works great and makes the truck run so much better and I actually saw a slight increase in MPG in the Sierra.

I have a 2014 Sierra 5.3 on order and emailed Range Technologies about 2 weeks ago to see if they had an updated device for the 2014s. Their response was that they have several out in beta testing and should have it ready for purchase soon. I wonder if the OP or anyone who has replied to this thread is one of the beta testers? If so, I assume it must be working OK. Or is it possible that they have just released it for the 2014s?

bigdeer1 · January 4, 2014

We'll maybe this would be my ticket to fixing the little drone I have left in my exhaust system. + I hate the lag from v4 back to v8... It's so sluggish. Where can I buy this product?

diannabill · January 4, 2014

I have noticed absolutely no lag going from V4 to V8. I'm wondering why some have, and if there's something they should have looked at to find out why they notice a lag.

bigdeer1 · January 4, 2014

It was noticeable before my exhaust swap. Now that I have change to a flowmaster u can feel & hear the struggle to switch

Natek · January 4, 2014

I am not a beta tester but I got my range device about 10,000 miles ago and I love it. No problems at all with it and they said the 2013 works for the 2014 and it does. I hate driving to the dealership to get oil changes without it. I believe it is the best 199 I've spent on my truck.

TJay74 · January 4, 2014

Any tuning done on the 2014 trucks wil leave a trace, the ECM now logs if it has been tuned and the dealers can see this if the pull the data from ECM.

voltedge · January 4, 2014

I asked my tech friend that has been with GM dealers for 30 or so years about taking my stock PCM out and installing another new one from GM in to use a program in and this was his response. When the new unit is installed, he has to go into GM's site to get the proper calibrations to download through his laptop according to the VIN options. At that moment, it is logged in through the GM system that the tune was released and downloaded and it is logged into the new PCM with a time stamp to validate the download. Now he also said that if I were to remove the new "custom" tuned PCM and reinstall the original OEM unit back into the truck, it would then be timestamped again at that point. The dealership is required to submit this info and if there are any catastrophic powertrain failures, Gm will require info from the PCM for their research. GM also has a staff of field engineers in each geographic zone that will actually visit the dealership in person if there are any issues that need further inspection or if there are problems that the dealership can't resolve after contacting them online or by phone. SO, DOn't fool yourselves by thinking that you are hiding this stuff from the manufacturer because you are not. If you are willing to take the risk, then so be it, but if something happens , it could cost you and have a permanent warranty block called a "branded" title issued that will effectively render the warranty useless. Just food for thought...

kstruckcountry · January 4, 2014

The range isn't a tune. As far as I know it leaves no trace.

Natek · January 4, 2014

Range doesn't tune or remap the ecu. All it does is send a signal to it saying the truck needs v8 the same signal you send when you hit the gas hard enough to kick in v8. That's my understanding of it.

ZmanII · January 4, 2014

My guess is that Range puts the truck in a diagnostic mode which keeps it in 8 cylinder mode. If simply removing it causes the truck to go back into AFM mode, it must not be programming anything. This is interesting, I haven't heard of this device previously.

glnisbet · March 19, 2014

I have tried to purchase a Range for my truck but have not been successful. Auto Anything is not taking orders because of delivery, and amazon is not for the same reason. Tried to contact Range by phone the other day but could not get an answer. Is this product still available and if so where were you able to purchase it?

fondupot · March 19, 2014

I have tried to purchase a Range for my truck but have not been successful. Auto Anything is not taking orders because of delivery, and amazon is not for the same reason. Tried to contact Range by phone the other day but could not get an answer. Is this product still available and if so where were you able to purchase it?

I ordered mine directly on the Range website. Bing. Bang. Boom. 3 days later it arrived at my door.

glioma · March 19, 2014

Got mine directly from Range, also.

Bbowen826 · March 20, 2014

I was about to buy one of these and did some research. Their had been several issues with other GM models such as the Camaro using this device. People are having problems with check engine lights, power steering lights, and brake lights coming on. Also there has been problems with some of the devices draining your battery if you don't start your vehicle after a few days. Others have reported hesitation issues when trying to accelerate. According to Range Technology the fix if you get these problems is to turn your vehicle off and remove the device to clear the codes. Some of the codes this things generates will prevent you from even starting your vehicle. It was also mentioned if you place your ignition in ACC mode and leave it their you have to remove the device first. Seems like a lot of issues. I'm willing to bet this is why Autoanything will no longer sell this product. Their has been to many issues and returns on it. GM released a service bulletin that directly says plugging items into the service port and leaving them their can cause a long list of electrical issues and lights to come on. So all though this item isn't traceable it doesn't always work right either. not worth the risk on my new truck. Especially for $200 to buy one.