Hey, so I got a Stage 2 93 oct tune from him. It's $75 with a free adjustment after a datalog after 100mi. I got it for free because I let him borrow my AEM CAI for testing.
So, this is my first flash tune and I don't have any other tunes to compare to besides the Cobb OTS. I can say that I feel the differences most noticeable in 3rd and 4th gear. I'm pretty sure it comes from how much longer Dizzy's tune holds boost.
On Cobb's OTS 4th didn't feel as "strong" after shifting from 3rd to 4th. I don't really feel a dip after the tune.
I have two imperfect logs I took. These were taken on different days. I don't remember the temps or humidity, so these logs will have a lot of %error. Dizzy's tune was also with a stock airbox with drop in filter as I lent him my CAI.
Here is Cobb OTS:
https://datazap.me/u/tanaboon/log-1520578887?log=1&data=2-5-10-12&trim=2&tmin=100.00&tmax=100.00
Here is Dizzy's:
https://datazap.me/u/tanaboon/log-1520904722?log=1&data=2-5-10-12&trim=2&tmin=100.00&tmax=100.00
On Dizzy's log, Waze gave me a police alert which is why I let of the throttle early. Maybe that can attest to how much quicker I accelerated [emoji14]
So, from these you can see that on Cobb's, the boost doesn't build as smoothly. The boost maxes at about 22.9ish (It doesn't hold there long) and drops below 22 at 4300 rpm.
For Dizzy's tune, the boost builds smoothly and holds well until 4300rpm. Boost also increases to the mid to high 23's. It holds longer as well.
When it gets nice out and my car isn't covered in 1 foot of snow, I will take more logs. These logs have a lot of variation between intakes, outside temperature, and humidity.
After I got my intake back from Jason and put it in, WOW, my car was a lot more fun to drive. I will definitely take logs of this on a nicer day.
Also, when you buy from Dizzy Tuning, you're also getting awesome customer service. Jason answered my questions via text/e-mail within 24 hours. After I popped a CEL from my catted DP, he sent me a fix that same day.
TL;DR: I'm very happy with my tune and I'd like to provide more accurate logs to prove it. The most noticeable part of this tune is the boost. And we all love boost.
-Tanaboon