Reviews: All Products

I think I was one of the first to sign up for a GR Corolla tune as soon as Alex offered them. Each iteration was a step up from the previous tune with the final tune being perfection! More power everywhere! The car feels so much different than stock and is much more enjoyable to drive. I highly recommend Stratified if you wan to add some juice to your GR.

Very experienced tuner!! Super happy!! I have been building cars all my life and can say these guys 100% know what they are doing!!

The entire ProTune process was simple and enjoyable. John D. helped me dial in my CTS K04 and was incredibly patient with me even though I wasn't able to get data logs done quickly due to my schedule. Each iteration of the tune was more refined than the previous one, and it was really fun to experience the incremental improvements.

Would definitely recommend the Stratified ProTune to anyone looking for a simple and enjoyable experience!

Coming from stock, to Cobb Sport, to this tune, I can say this is the best tune so far. Very smooth. The logic knows exactly what gear you need to be in. Very responsive to throttle, it will downshift immediately to the appropriate gear.

Great product, super fast shipping and great customer service.

The power is very smooth and linear. Docile down low for driving around town. It doesn't throw all the torque at you at once, which I prefer. But when you put the pedal down, it's all there, all at once. Feels great. Nice tune, Stratified!