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2012 WK2 LTD 5.7 ORA II
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Discussion Starter · #1 ·
I just had my tune tweaked from Sean at hemifevertuning.com and he told me he has now tuned a few 2011's, so all you 11 owners can now enjoy what us 2012 have for a while! You won't be sorry.
 

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Yes, been running Sean's 89 octane tune over the long weekend. Put about 200 miles on it and it has been running great. I also received the 91 octane tune, and will have to give that tune a shot once im due for a fill up.
 
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Grand Cherokee
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I just received the 93 v2 tune from Him to test and he made some significant improvements on shifting. So far I really like it.

This is why I'd buy from him again and I highly recommend hemi fever tuning. He reached out to me with the updates.....I didn't have to ask. The guy is always working to make his product better.

Two thumbs up!!
 

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I just received the 93 v2 tune from Him to test and he made some significant improvements on shifting. So far I really like it.

This is why I'd buy from him again and I highly recommend hemi fever tuning. He reached out to me with the updates.....I didn't have to ask. The guy is always working to make his product better.

Two thumbs up!!
Agreed! I was emailing him almost once a week for any updates on custom tuning. Over about 2 months went by, so I had given up hope. Sean reached out to me last week to have me try a custom tune. Awesome guy to deal with.
 

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2012 WK2 LTD 5.7 ORA II
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395 Posts
Discussion Starter · #12 ·
I just received the 93 v2 tune from Him to test and he made some significant improvements on shifting. So far I really like it.

This is why I'd buy from him again and I highly recommend hemi fever tuning. He reached out to me with the updates.....I didn't have to ask. The guy is always working to make his product better.

Two thumbs up!!
Exactly. I have been promoting hemifever ever since I installed my tune in March. SOme even asked me if I worked for the company lol. He too reached out to me with the updated tune. He offers the best customer service in the business!
 

· Waggie
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3,245 Posts
After 3 years and 36k miles, finally got the Diablosport T1000 for the 2011 WK2 via Hemifever, as per my fellow JG brothers I am most interested in Sean's custom tunes.

Though I am only running DS canned tunes for now, Hemifever has already gone beyond the call of duty as my first Trinity unit was wonky and would not load properly. It was so nerve wracking that it was a surprise that the Jeep didn't self combust. Sean came through for me with a replacement unit no questions asked, talked me outta the tree before I hurt myself or the vehicle while forcing something in anger, and again has me looking forward to his CMR.

I've only had a brief evening running the DS 91 canned tune so this is a bit unfair. I might notice a bit better throttle response though nothing material. Will give her a good romp in the mountains tomorrow and report back.

Patience is a virgin.
 

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2012 WK2 LTD 5.7 ORA II
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395 Posts
Discussion Starter · #16 ·
After 3 years and 36k miles, finally got the Diablosport T1000 for the 2011 WK2 via Hemifever, as per my fellow JG brothers I am most interested in Sean's custom tunes.

Though I am only running DS canned tunes for now, Hemifever has already gone beyond the call of duty as my first Trinity unit was wonky and would not load properly. It was so nerve wracking that it was a surprise that the Jeep didn't self combust. Sean came through for me with a replacement unit no questions asked, talked me outta the tree before I hurt myself or the vehicle while forcing something in anger, and again has me looking forward to his CMR.

I've only had a brief evening running the DS 91 canned tune so this is a bit unfair. I might notice a bit better throttle response though nothing material. Will give her a good romp in the mountains tomorrow and report back.

Patience is a virgin.
The canned tunes do nothing for the listless shifting of the WK2's. That's one of the main benefits of the hemifever tune. Do it, you won't be sorry.
 

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Canned tunes are ok, at least they get rid of the throttle lag that's a big one imo.

Hemi's tunes are a problem... I started running his 93 last week and all of the sudden I've got an exhaust, CAI, catchcan and PTB I can't afford any of on the way lol.
 

· Waggie
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3,245 Posts
Hemifever's first 91 tune got rid of the horrible throttle lag from ETC, gives great mid range pull, and smooths all up and down shifts. No more mashing the pedal nearly to the floor just to get a downshift and throttle boost. I have not even sent Sean a log yet, but he's bound to get more jou jou at both Denver's 5,280' elevation, and especially up at 10k'+.

Very impressed. Thanks Sean.
 

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2011 Grand Cherokee
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I got my 89 tune from Sean within an hour of completing the purchase through PayPal. I know Sean's reputation precedes him, but his turn around time is impressive...almost as impressive as the tune itself!

I'll be sending him some data logs as soon as I use up the of 87 octane I have in the tank right now (fuel is nearly $4.00 gallon here) but the improvement I've noticed thus far is impressive to say the least.


Thank you Sean!!
 

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2012 WK2 LTD 5.7 ORA II
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Discussion Starter · #20 ·
I got my 89 tune from Sean within an hour of completing the purchase through PayPal. I know Sean's reputation precedes him, but his turn around time is impressive...almost as impressive as the tune itself!

I'll be sending him some data logs as soon as I use up the of 87 octane I have in the tank right now (fuel is nearly $4.00 gallon here) but the improvement I've noticed thus far is impressive to say the least.


Thank you Sean!!
Just fill up the rest of your tank with premium to get the 89 mix! That is what I did.
 
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