Originally Posted by
thewizzrd
To all the doubters,
I did have the upgrade done at my dealership last Friday. They are doing some field tests with it and I put my hand up. They had engineers in from Japan while I was there, testing out the upgrade on my car. I have been driving it for a week now and as I said before the pinging has been reduced but it is still noticeable but not as much. I did mention to them on Tuesday (after driving the car fro a few days) that I felt the car had lost a bit of it's grunt. They were surprised by that comment and mentioned that on another car they had positive results and it had improved performance.
They will get back to me next week with more news.