Got my GT dynoed just after purchasing, stock bog standard, got 334.3 and 333.8kW over two runs. Must admit have not had it re-done after 2.5 years, but will get Simon to tune it soon and we shall see, would love to get his full package done to it but the 'Minister of Finance' has dusted off her cat-o-nine tails and is polishing her gimp suit so I get the sneaky suspicion the answer is a tad negative.