Cheers Brian,
I am running a stock standard 5 Port with turbo head, nothing modified at this stage .
I have the 086 to fall back on if the other pipe proves to much. I have heard a lot about the 2063 and it is meant to give a very smooth power delivery from start to finish, with good performance top and bottom. Without a doubt the 086 is the best pipe I have tried on the 5 port as yet (better than the 2047 in my inexperianced and humble opinion ). I will let you know how the 2063 compares to the 086 in month or so.