Factory tune on my 4.3.

dpassmo · March 12, 2016

Had my dealership put a factory tune on 2014 4.3 . I'm running 35's and was getting about 14 mpg.. after driving now for 3 1/2 days I'm up to around 17 .. made a world of difference on the shifting.. also took the v4 mode out..happy so far

1badtie · March 13, 2016

Who was your dealer that did tune? I see your in Ar was it GPI?

harveyfamily · March 13, 2016

What did you have before?

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obrien19 · March 13, 2016

Had my dealership put a factory tune on 2014 4.3 . I'm running 35's and was getting about 14 mpg.. after driving now for 3 1/2 days I'm up to around 17 .. made a world of difference on the shifting.. also took the v4 mode out..happy so far

Any pics of your truck? Curious how it looks

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dpassmo · March 13, 2016

Gwatney in Jacksonville they have a performance shop ..

dpassmo · March 13, 2016

Not sure on the GPI .. 383$ for it total.. much cheaper then a $600 Diablo ..plus still have power train warranty bc had the work done where I purchased my truck..

NitroDatsik · March 13, 2016

More information needed. I have a 4.3 on 33s and average 15 and I would like to get more mpg but haven't pull the trigger on Diablo tune so if this is worth it then I'll go this route

2014 Silverado 2WT CC Summit White 4.3L V6

DROPKICK Edition

IG: jorge_dropkick_rangel

https://m.youtube.com/user/jorgerangel159

1badtie · March 13, 2016

Not sure on the GPI .. 383$ for it total.. much cheaper then a $600 Diablo ..plus still have power train warranty bc had the work done where I purchased my truck..

Yes same place GPI is the performance shop within Gwatney Chevrolet. I have taken my Camaro there in the past very knowledgable people there. I need to take my sierra down for a tune.

dpassmo · March 13, 2016

Yes I think it's worth it.. and I'm pretty sure GPI.. I'm very happy so far.. even fixed Speedo .

dpassmo · March 13, 2016

I was the first 4.3 ecotec they had done..

tyrich88 · August 9, 2016

This is really impressive. I'm definitely going to start looking around here to see if any dealers do this. Would LOVE to have a tune and not void my warranty!

techsan15 · August 10, 2016

This is really impressive. I'm definitely going to start looking around here to see if any dealers do this. Would LOVE to have a tune and not void my warranty!

If you find one, let me know! I'll do the same.

edit: you might holler at Scoggin Dickey

tyrich88 · August 10, 2016

If you find one, let me know! I'll do the same.

edit: you might holler at Scoggin Dickey

So I called Scoggin Dickey and GPI. Scoggin Dickey said there is no such tune that will allow you to 100% maintain your factory warranty.

So, a little concerned that Scoggin Dickey, of all places, didn't have a solution, I called GPI (where the OP got his tuned). They confirmed that even with their tune it is not free and clear to 100% maintain your warranty.

He said they do all of the custom tunes and do some customization to allow for fewer powertrain issues, but it DOES NOT 100% maintain the warranty.

He did say that there shouldn't be any issues that will show up as a direct result of the tune, but they do not guarantee that.

EDIT: They said it doesn't VOID the warranty, but it could potentially cause issues if Chevrolet can PROVE that it is a direct result of the modification. BUT it is completely on Chevy to prove it.

He mentioned an example where if you add a supercharger or something that adds 200HP to the vehicle and go out and shred the transmission, obviously that's the cause. But a few timing and air/fuel ratio calculation changes to gain some better shifting, throttle response, MPG and a little power, shouldn't cause any major issues with normal driving.

techsan15 · August 10, 2016

So I called Scoggin Dickey and GPI. Scoggin Dickey said there is no such tune that will allow you to 100% maintain your factory warranty.

So, a little concerned that Scoggin Dickey, of all places, didn't have a solution, I called GPI (where the OP got his tuned). They confirmed that even with their tune it is not free and clear to 100% maintain your warranty.

He said they do all of the custom tunes and do some customization to allow for fewer powertrain issues, but it DOES NOT 100% maintain the warranty.

He did say that there shouldn't be any issues that will show up as a direct result of the tune, but they do not guarantee that.

EDIT: They said it doesn't VOID the warranty, but it could potentially cause issues if Chevrolet can PROVE that it is a direct result of the modification. BUT it is completely on Chevy to prove it.

He mentioned an example where if you add a supercharger or something that adds 200HP to the vehicle and go out and shred the transmission, obviously that's the cause. But a few timing and air/fuel ratio calculation changes to gain some better shifting, throttle response, MPG and a little power, shouldn't cause any major issues with normal driving.

Kinda what I figured. Pretty much exact answer I got from Autonation Chevrolet here in Amarillo about leveling kit...Thanks for the look!