shaggyvette

Hi gang, is the AFM DISABLER really worth the cost. I'm still hesitating the purchase of this devise. Thoughts please !!!!

Dave

AZRenegade

Yes.

shaggyvette

Well that settles it..... I'm ordering tonight... Thanks

Dave

dbj216

GM generally speaking is very good at increasing fuel economy in their vehicles. I'm not a fan of cylinder deactivation. I understand if you drive the A8 transmission in manual mode, the AFM is disabled. So maybe that is an alternative. I am in favor of using a Range device if manual mode isn't desirable for you. Others more experienced than I will surely chime in with their experiences.

David

AZRenegade

Buy directly from the Range site for the latest version of programming and read this: The real reason why Corvette C7 Stingray uses steel torque tube and why this signifies the fundamental failure of the new car | corvette c7 stingray and Z06 exposed (wordpress.com)

seniorstorekeeper

I think that a Range Device is the best investment you can make, not only on a C7 Corvette with an A8 transmission but on any GM vehicle that has AFM. Cylinder deactivation can't be good on lifters, transmission and drive train over the life of the vehicle. Had one on my 16 Stingray with the A8 transmission, worked well and did exactly what it was supposed to do, make a V8 engine run on 8 cylinders. I agree with the previous post, order directly from Range Technologies to get the latest version.

WPGZ06

Don't hesitate. Buy it. Great investment.

yaknow

just do it

DD04C5

Yes it is worth the money.

RRC19966

I had issues with AFM in other vehicles, so the Range was one of the first things I added. It works. No V4 mode. No shuttering between modes, which can be frequent unless you are on the interstate with cruise control on.

outrunm

Is there a reason why not to do a 91 or 93 octane Diablo tune instead of having something plugged into the OBD port all the time?

Vetteman Jack

I agree with everyone above - the AFM Eliminator is well worth the money. Buy directly from Range Technologies, get the latest version and be assured of a full warranty on the item.

MyDarkAngel

I am working on that theory right now. I have a range and just received my Diablo so I can see if there is a difference in how my car acts with AFM disabled.

RRC19966

Range won't effect warranty. A tune typically does, but I've never done a ECM tune on anything under warranty, so maybe GM doesn't care, I know the quickest way to void a Harley warranty is to do a performance tune then take it in for service.

AZRenegade

GM does care. They all care and the more aggressive dealerships will check your tune status as a matter of routine. If an engine related warranty repair is submitted to GM, they will request the performance data at the time of the failure. If your "black box" shows that the engine was performing outside the parameters of the OEM tune, the warranty repair will be denied and your warranty is terminated. So regardless of whether or not your tune can be detected or if you have time to reinstall the OEM tune post engine failure, there are still ways to detect tune tampering. Do ya' feel lucky?

TMSFan

Buy the Range, plug it in and forget about it. It works perfect.

NashvilleGrandSport

Get one. I bought mine pre-owned from the forum.

Just remember to unplug several driving cycles before emissions testing if requiured, and you may elect to remove it prior to taking to dealer for service as well (I have not, but do unplug it there so they can access OBD-II port).

Tinkertech

Everyone has their opinion. To get to the true facts on installing and removing a Diablo tune for warranty work you need to talk to the people that manufactures them, Diablo.

They will walk you thru the process and explain how it works so it isn't detected when you need to take your car in for warranty work. Just flash it back to stock before you take it in to GM.

It still is the best way to turn off AFM thru the ECM computer, not by tricking the system every time you start the car. Ever notice that you have to unplug the Range for a couple of weeks before getting an inspection? Thats because the Range is constantly clearing all the DTCs every time you start the car. This 'feature' removes all the DTCs that you would need to troubleshoot an issue with the car.

The Diablo does not clear DTCs every time you start the car. It just sets the AFM 'switch' inside the ECM to off just like driving a M7, out of Eco mode, or a A8 in manual mode.

yellow2007

Get it.....case closed.

shaggyvette

I saw, somewhere on the forum, that the devise will run your battery down if left plugged in all the time. Any one had a problem with this. Is it best to unplug it if storing Vette for more than a few days?

Dave