Alex was a great tuner to work with over the course of 9 months. He provided an outstanding 91 octane map (sea level) for my 2010 Mazdaspeed 3 (Stage II). He then worked with me to delay the continuation of further tuning until I was able to move to Colorado and get settled in. Then Alex was quick to help me with getting high altitude tunes for both 91 octane as well as E85 mix. I now run the E85 tune on my Speed 3 and really notice a huge performance boost compared from when I was running the off-the-shelf Cobb maps for Stage II. Alex's flexibility and professionalism was superb and I would highly recommend using Stratified for professional tuning. I will continue to look to Stratified in the future as my needs change. Thanks so much for creating such awesome maps for me!
Sincerely,
Jason Hurt