For some reason its gone out of tune, dunno why, Ive been told that the stock computer still has too much control and a standalone would get longer lasting results.
It now pings on high boost(15psi) and blows black smoke out the pipe most of the time, and is slowly getting worse, Have been running on low boost(10psi) for months now.
I realise the change of ECU wont give me a better HP figure but thought the bigger housing and a bit more boost on a standalone ECU with a good tune might do it.
Also.. always runs Vortex98 and was slowly getting worse even before changing the rear housing.