I have run both the Akra ESS tune and the Dinan middle racing tune.
Both work with the full Akra system just fine.
The ESS Akra tune had a bit more "oomph" to it, but I started getting some strange codes, so I flashed my car back to the Dinan software to be safe. Only happens in cold weather and Roman@ESS was very helpful. No complaints there.
No codes or engine warning light since I have had the Dinan SW back on there, but Im going to wait to see what happens.
As for the dip, never really bothers me since I tend to down shift for passing. Only time I might notice it is if I am in a high gear in the city and I need a burst of speed.
I have run both tunes out on track, both worked very well and had zero issues.
I initially went with the Dinan software because it is a conservative tune and would not have any warranty issues, plus at the time, they were offering a 20% discount on the tune, which did not make it to much more then the CEL plug in deletor, so for me it was a no brainer.
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