If you decide to go back to standard and change to the larger twin feed TF box make sure you get the fitting bracket,the mk1 bracket is too small.You will also have to remove the resonator box if you have the mk1 set up.
Only bleeding ears !!
I had one for a week, I hated it, it had a cold feed, it was unbearably noisey and I love noisey, fuel consumption went up and I lost power .. Nasty horrible things