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I bought it about 2 months ago and since have only downloaded 3 tune options with various parameters to my 2011 Jeep Cherokee Overland Summit 5.7. I was amazed by the performance, it was night and day under certain conditions. My problem is, I like gas mileage better. With my commute ( mostly stop and go) the tunes just weren't helping me achieve what I wanted. The gains in torque, response, the ability to turn off MDS, etc were amazing though, which probably caused me to floor it a lot more often, which also doesn't help my MPG. Just for the record, I also have a K&N cold air intake and modified exhaust.

Anyway, my loss is your gain. I already set my tune back to stock and the Intune is for sale. I paid $349 for it and its still in the box. Yours for $300. Check the classified section if interested.

located in MD.
 

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2012 WK2 LTD 5.7 ORA II
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I bought it about 2 months ago and since have only downloaded 3 tune options with various parameters to my 2011 Jeep Cherokee Overland Summit 5.7. I was amazed by the performance, it was night and day under certain conditions. My problem is, I like gas mileage better. With my commute ( mostly stop and go) the tunes just weren't helping me achieve what I wanted. The gains in torque, response, the ability to turn off MDS, etc were amazing though, which probably caused me to floor it a lot more often, which also doesn't help my MPG. Just for the record, I also have a K&N cold air intake and modified exhaust.

Anyway, my loss is your gain. I already set my tune back to stock and the Intune is for sale. I paid $349 for it and its still in the box. Yours for $300. Check the classified section if interested.

located in MD.
If you get a hemifevertuning.com tune your gas milage will return to where it was at stock. One thing that bothered me about my Diabo tune was that I lost about 2 mpg's per gallon in city driving. Once I downloaded my hemifever tune, mileage was back to stock level, but the power was night and day compared to the canned Diablo tune. Believe me, look at what the others are saying about this tune. I am a believer!
 

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'10 GC SRT-8
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I have to ask dizz1979, do you work for Hemifever or are you just a very enthusiastic customer? I've seen you promoting Sean's tune in this forum, jeepforum, Diablosport's forum...any other forums I'm missing? I'm just messing with you, but I couldn't hold my silence any longer :D
 

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2012 WK2 LTD 5.7 ORA II
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I have to ask dizz1979, do you work for Hemifever or are you just a very enthusiastic customer? I've seen you promoting Sean's tune in this forum, jeepforum, Diablosport's forum...any other forums I'm missing? I'm just messing with you, but I couldn't hold my silence any longer :D
If I was I would be selling more! No I am just an incredibly happy user. I waited and waited for a tune to come out because I already owned a Trinity that I used on my 05 GC 5.7. When the 2012 tune was released by Diablosport I was underwhelmed. With the 05 tune there was a TCM update as well, but that was not the case with the 2012. The shifting was very lethargic.

I want others to experience what I now do with my Hemi GC. I can guarantee that anyone that uses this inexpensive upgraded tune will love it.:thumbsup:
 

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If I was I would be selling more! No I am just an incredibly happy user. I waited and waited for a tune to come out because I already owned a Trinity that I used on my 05 GC 5.7. When the 2012 tune was released by Diablosport I was underwhelmed. With the 05 tune there was a TCM update as well, but that was not the case with the 2012. The shifting was very lethargic.

I want others to experience what I now do with my Hemi GC. I can guarantee that anyone that uses this inexpensive upgraded tune will love it.:thumbsup:
Sounds very promising...... did you happen to use the Trinty to change the tire size to correct your speedo for a larger non OEM tire size? I've read several reports of Diablo tuners that throw an ABS dash light when doing this. It's held up my purchase of any Diablo products until this bug is worked out.

Your Hemifever reports sound very encouraging but I'm not spending the $$ until Diablo works out all the kinks! Besides better performance and shifting I'd like to be able to correct my speedo while running larger 275/55R20 tires.
 

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