Cobb OTS Stage 2 Comparison Results

This video presents an overview of the results of a comparison made with my Mk7 GTI of several OTS Stage 2 ECU tunes.

Tune Comparison Plan

Street Data Collection

Street Data Summary

Dyno Data Collection

Dyno Data Summary

[supertony]

I would love to see a MK8 version of this, I was going to go EQT or 034 and now I'm not sure.

[RSXengineering]

Very interesting research! I enjoy this type of video a lot.

[One_Guy]

thanks for sharing your findings! Those Knock sensor changes in some of the tunes are quite interesting! Def. very useful info when deciding what tunes to go with.

[danf]

Jeff, I really appreciate all your work on the mk7 platform. Your website is an invaluable resource for owners and enthusiasts. The data and analysis presented have been very helpful in planning my own build.

I was disappointed to learn that 034 was not willing to submit their ECU software to your testing. Consequently, I will be switching to a Stratified tune. I had been running 034 due to the perception that they offered a relatively “safe” tune (but who knows without verification?).

According to 034’s YouTube channel, they don’t defeat any of the OEM safety measures, which after viewing your analysis likely means not raising the knock retard threshold like EQT or SneakyTune does. Like COBB, this results in a little less power compared to other tunes, but I figured was worth it for better reliability. However, I thought it was interesting that Stratified achieves more power without numbing the knock retard either.

I wonder if this evidences a more skilled tuning capability by Stratified than say EQT or SneakyTuned who do numb the knock retard (assumedly, in exchange for more power). Perhaps that’s an easier way to achieve more power, but there are risks.

[JShayy]

It's interesting - I would love to hear the tuners responses to the change in threshold. Without knowing much about KR, I could see that with the other variables changes, there would need to be some changes to the threshold to avoid "noise" caused by the other changes. As in, are they perhaps safely addressing false knock created by bumping up boost, timing, etc?

[rambow]

This is such amazing content for the platform. It would be interesting to see how Tunezilla and IE compare (not sure if it's harder to do since those aren't on the cobb access port). Do you think you could do this exact same video but for the IS38? I've been wanting to upgrade but I see varying power outputs through various tuners. I also worry about IS38 longevity.