Hi Deano, I know what you're saying about the fuel but I was always under the impression that the 93 octane stuff in the states is on par with our 98 so I'm still expecting a similar sort of increase in hp to the guys who normally use the 93.
I still think most of the power increase will come from the cat removal though.
I've also decided to add a pulley to my list as well.
Does anyone know what a stock M3 normally puts down on an Aussie dyno? The US dyno numbers always seem to be a lot higher than what we see here.
2012 AW e90 M3 DCT - Daily
2010 AW X6 50i - Tow rig/baby hauler
1991 Nissan 180sx SR20DET - Drift pig