Ghetto & welcome, one of the hatch owners will be along at some point with better advice but here's mine, only run it on vpower ! They suffer form det issues if you stick normal fuel in,
I have a cobra with sports cat and resonated 2nd section so I'll get a vid for you if you like,
The early cars suffered from Ringland failure a remap will sort this, iirc the dealership originally should have addressed this as was part of a recall, i'd check paperwork, if not may as well get a map and exhaust [emoji16] maybe not solely for power but the torque & mpg gains it offers.
Anyway that's me I'm sure Jay aucky Alex or the others will give some more advice