What can you guys recommend ? ECU upgrade or "pulley"?
I've been looking on the Hamann http://www.hamann-motorsport.com/en/tuning...ne-tuning/

BTW, can anyone tell me how much bar my Eaton Supercharger is running with?

Sorry for my bad english

If you do decide to go with one of these "kits", make sure they offer a minimum warranty......adding another 85bhp is not going to do wonders for the gearbox or engine IMO, especially if your car is already 4 years old  L322 Big Daddy SUPERCHARGED 5.0 Autobiography - Here & Now!

5 series for the miles

RRS S/C factory built HST - Gone

45 others have been and gone!