larrybee

I know. Beat a dead horse but need experience from range owners if this smooths out shifting and makes transmission stronger? Need a shove.

StrykerZ06

Just do it! Been running my Range for a year now! Smooooth sailing!

joemessman

I have been using it in my 2016 and 2019 for over 200K miles. No problems.

MY04CE

While there will be several people saying go for it, I tried a Range unit for about 6 months and ended up selling it. I never thought it "smooths out shifting," or, "makes transmission stronger." The device will keep you in V-8 mode while costing you 1-2 mpg. I suggest you view the Range device as an insurance policy against possible valve train breakage. While there have been issues with the cylinder deactivation system, I decided that I would address any issues if they occurred and not use the Range device. Your decision -- good luck.

AZRenegade

Do yourself a favor, add a few bucks and get the i3. It doesn't interfere with sensor signals to the system and allows you a lot more versatility for tuning. I've used the Range and it works as described and I don't have any complaints about how it performed. What I didn't like was how it blocked sensor data to the system. I eventually went with the i3 and am really happy I did. I tuned out the AFM, upped the throttle response, and am working on a custom tune. By the way, contrary to popular belief, it doesn't change the CVN number. Even if it did, I have it on good authority that most extended warranty contractors aren't as diligent as GM when it comes to looking for aftermarket tunes. They generally rely on the Tech's input. It's your money, your call but my opinion is that you get better value with the i3.

larrybee

Is i3 a tune??

AZRenegade

To be clear, it is a tuner. It reprograms your ECU and allows the system to function normally. The Range unit fools the system into believing that V4 isn't needed. In the process it blocks sensor data to the ECU. Personally, I prefer reprogramming to fooling the system. Do an internet search on Diablosport i3 and all your questions will be answered.

JLSuperfly

Will the i3 cause a smog test fail?

AZRenegade

That's a question that would best be answered by the folks at Diablosport. From what I have read at their site, their canned tunes meet 50 state emissions standards. If that is a concern for you, I would recommend that you contact them directly for a definitive answer.

Tommy79

I'll probably get rocks tossed at me, but buying a Range device is like buying an Apple iPhone. Nice phone.... Just paying a ton for the name... In all that, I purchased a "no-name" on on Amazon (OBDCAR RA003 AFM/DFM Disabler) I paid $90.00 bucks with a 3 year warranty. I've been running it for about 3 months... No issues.

But... It's your money. If you buy from Amazon and don't like it, send it back. Nothing loss but time.

76-Vetteman

Thanks for replying about the Diablo i3. Looks like the multifunction ability of the tool is a great asset for the shop. I'll have to grab one soon. (like I don't need another tool)

duckvett

The Range devise does nothing to smooth out shifting or make the transmission stronger. It eliminates AFM engagement, which in turn, helps to eliminate shudder. If you are feeling a shudder I highly recommend having the triple flush done. Then after doing the triple flush, buy a Range devise (buy direct from Range Technology, never a used one from Ebay) and enjoy the drive.

Vetteman Jack

However, the Diablosport i3 does sound interesting.

Tinkertech

Diablo I3 all the way.

Had it on my 17 since new just to disable the AFM. No issues at all.

ChiefBoats

Used the Range on my '14 and '16, couldn't stand the phart pipe sound without it. No issues on either.

joeking

I bought the Range immediately after buying the Corvette and have no regrets. I read many articles about the range before I purchased the C7 and decided it was worth the money. I bought it from Amazon.

BWF07

I simple drive my 2015 in the manual mode and it does two things. First it stops it from dropping to the 4 cyl. mode and it also stops any trans shutter.

Squeaky Wheel

The Range device is the only thing I kept after selling my 2016 C7 coupe with an A8. I purchased it directly from Range and it worked great. Would never own another A8 without without using one. I’m currently using it on my 2014 C7 with the A6.

9sec

paid 75$ for my range device used. hasn't missed a beat. and ill get 75 for it when I sell it

TxLefty

Bought the car, did the triple flush as soon as I heard about it, then installed a Range Device. It does keep the vehicle from going into AFM. I'm not sure that it would do anything to help shifting. IMHO, not going into AFM is a good thing. Works as advertised. I agree that tuning is a better solution, but I have a warranty and thus tuning is not an option for me at this point. The Range Device was the next best solution.