+1
Some questions are best just asked directly to the trusted tuning companies. When thrown out into the air like this you get a lot of folk putting their 2 cents in, albeit there may be some good information, but it only causes to crowd out the experienced advice of the tuners themselves who do this type of work day in day out and know it works, otherwise their business would be a failure and they wouldn't have such a good reputation amongst this community.
Pointed at GT4ZED mainly, 5 pages of unnecessary shyte.
Corrected