Congratulations Wilson and I too am thrilled to hear that you're pleased with the performance results, as I know I tried to encourage you as well. Having put a few more miles on my G56 ECU I am certain that this has improved smoothness in the low-medium rev range and the car now pulls cleanly on a 'managed' throttle at 2000rpm - much better than before.
Interior strip-out is time-consuming first time round, but gets much quicker thereafter, should the need arise. I too had the fat bobbins in stock so could deploy those with the install of the new, deeper brackets, but I can see your point that not everyone will necessarily have them on the shelf. Having said that, should anyone else order the G56 kit from the guys, it would be worth having the bobbins conversation and see if they are able to supple the appropriate items with the kit. It would certainly take out some of the install process variance.
For what it's worth, my car is now more economic on a cruise than it used to be, so stuffed-up were the stock exhausts. So a Win-Win all round I'd say
