Hemifever CMR tune for Durango 5.7
 

I have a catback, intake and 180 degree thermostat. I ran a best of 15.49@88 MPH with these mods. I bought a Diablosport Trinity and ran the 87 octane tune. 15.31@90 MPH was my best run in the quarter mile. Mileage was down about 1MPG with this tune.

Just loaded up the hemifever 89-octane tune after datalogging my track performance with the 87 octane tune from Diablosport. I'm going to be looking at MPG first and then heading to the track for some comparison.

Hemifever has a good reputation and has been very responsive. My own CMR tuner has been too busy to give a custom tune and didn't think he could do much with 2012 tuning.

I paid full price for this tune and am in no way affiliated with hemifever tuning. I'll give an honest appraisal. Stay tuned :-)

Looking forward to your impressions!

Looking forward as well since Ive never heard of the guy on any of the LX/LC forums.

He's on the jeep forums for sure...

thinking of getting a hemifever tune also but have to wait until the tune is available for the 2013s

So far the hemifever 89 octane tune doesn't feel much different than the 87-octane Diablosport canned tune. Track will show if there is any real gain.

And why not be on the most popular forums with the majority of CMR buyers, ie Ctalk, LXF, etc? CMR is a much different animal than SCT so we will see how the OPs tune is...

Plenty of proven tuners out there though. Johan, Mike @ OST, AJ/hemituner, HHP, Jerseyboy, etc.

Not sure, I havent dealt with him at all just see the threads in the WK2 performance section!

SEAN at Hemifever.com has been around a long time
He has done a lot of work with SCT as well. He is a great person to deal with and really helpful.
He helped me a lot with my Gen 1 Durango Tune
STEVE

Any updates bro?