Hello forum

Here in Sweden we have 95 and 97 octan gas. I'm going to uppgrade my -05 GT stang with exhaust sytem, airfilter and cpu-upgrade and been told that it would give me about 360 hp? not bhp. Is that realistic? And what more could be done?

Was at first thinkin about an super charger but I'll wait for the Shelby Cobra and will just do simpler upgrades.

Best regard and thanks for a great forum