Fact is a set of 2530s (-5) and gtrs (-10) will make the same power due to the rear becoming the restriction, the -5s will give much better response and dont have compressor surge problems
That's fine if you don't want to deviate away from the factory functions but when you actually want things like flex fuel, vcam, wide band O2 along with plenty of other things it's useless
While it's been a bit quiet in here this car is not finished and there are a couple of major changes coming this year.
But I have been enjoying it over the summer including a drive through the national park with some nice scenery