Reviews: All Products

4 port controller for mk6 GTI. This kit is fantastic! Installs the same way as the single port, just with the provisions for 4 injectors. I’d recommend doing the flex fuel option for the controller itself. It’ll only be flex for the extra injectors. But makes life easier when switching fuels. Overall fantastic, love the final product.

Just finished my last revision with Alex, the process was easy and timely. I tried a protune with another company but the response time was not very good or communicative. We did a flex tune starting with terrible California 91 up to E75 which is what I could get at the pump. Since the first file the vehicle already felt much better than my previous tune. Alex answered every single question I had almost immediately and even helped me diagnose some non tune related issues that I had. Overall I am very happy with the service, from start to finish it was a real pleasure. My car feels like a completely different car now, daily drivability is maintained. When in race mode my car is an absolute beast. Definitely recommend Stratified over the other one we all know about.

Was very pleased with how this tune came out sounds amazing and performs very well. I had forgotten to mention one of the modifications done to my car so I shot them an email and they responded within five minutes. Great customer service.

Incredible. Been running them for about 20k miles now, not a single complaint not a single problem just me and my GTI gapping 90 percent of cars on the street

I second what John said in the first review! Clayton has been excellent through the entire tuning process! My WRX runs so much better and is much more fun to drive now! I highly recommend Stratified for all your tuning needs!

Gotta love Stratified great customer service & great quality tunes. Stage 1 low torque may be rather conservative but extremely safe compared to other stage 1 tunes. High torque past stage 1 or even their custom tune is where stratified truly shines!