Reviews

Stratified completely delivered the best possible tune for my 2017 Golf R with a CTS Boss600 turbo kit(GTX3071R), on a stock fuel system. Alex G was able to extract every once of power possible from the setup, while maintaining civilized behavior, when driving around normally. Was averaging around 26+ mpg in the city, with light traffic. When opening things up, the power delivery is unreal. Car makes power through the entire RPM range, and will continue pulling up top. Maximum torque seems to come on around 4500+ rpm and gives you a nice shove into the driver's seat. Communication throughout the entire process of remote tuning was an absolute pleasure. Alex was extremely attentive, knowledgeable, and an all around pleasure to communicate with. He's a true perfectionist that won't stop until things are dialed in perfectly, and exceeding expectations on the logs. If you were on the fence about getting your car pro tuned, it's time you hop off and go all in with Stratified!

If i could give more stars i would. Tuning process was a breeze with Alex. Very knowledgeable and answered all the questions I had for him. Will def be returning back to stratified!

I'm happy with my ProTune. Both of them. The 93-octane and E30 variants.

The process was long for me. Alex, the tuner, had to work out ways to compensate for little drivability issues that were unique to my car which took many revisions, sometimes with long waits between them. But because the value of what I got feels so high, I don’t complain about the sometimes-long wait between those revisions. It's not like I was ever left with an undrivable tune - every revision was safe and good to drive on while I waited.

And from the very first iteration of the tune, it was fast.

When I got the Accessport, I tried the off-the-shelf COBB tune (Stage 1, 93-octane, High-Boost) that came with it, and it scared me. I was scared because it was slower than the JB4 piggyback tune I had just sold to buy the Stratified ProTune, and I was worried that the ProTune would be slower than the JB4 also.

Not so! The first iteration of the ProTune was three-quarters of a second faster than the Cobb tune, just through third gear (timed from 35-75 MPH in 3rd gear, starting WOT at 20 MPH).

I'm more enthusiastic and picky than most people about this stuff, which frankly stops me before recommending most products. Alex never made a mistake or did anything I felt was dangerous to the car. The car runs well and goes real fast. So I recommend Stratified, and Alex too.

The protune through stratified was a great experience. Alex was very helpful and insightful. The improvements to the car exceeded my expectations, the turbo lag from the factory is dramatically improved as is overall driveability. Would highly recommend this service!

Alex was a pleasure to work with. Very responsive and was able to answer all of my questions throughout the tuning process. He was very knowledgeable of the Mk7 R platform. The difference between the final tune and the OTS is very noticeable. The car has an almost stock smoothness with a great bump in power.

I'm a return customer from a different platform. I owned a fully bolted E30 MS3 a few years ago, and now I'm fortunate enough to own a MK7 Golf R. Based on my past experience, my tuning choice was a no-brainer. The VW guys are so ingrained to believe canned flash tunes are the best option for this platform. A custom tune is ALWAYS the best choice. Why choose a tune that's a "one size fits all" approach, when you can have a tune designed for YOUR car, YOUR fuel, YOUR conditions? And I've seen the logs on all options; trust me, this is better for your car. Alex has the experience, knowledge, intelligence, and tuning time behind the wheel of the MK7 R to get it where it should have been from the factory. And safer and with better numbers than the other guys. You won't be disappointed.