Don't waste the money on an ECU. They actually decrease HP and increase torque, and only by about 5-7. Best upgrades for the money on an N/A are UD pulley, light weight flywheel, performance clutch, and you already have the intake and exhaust. The other ways to get big gains are TT swap or buy a TT. Sorry, but N/A's are kind of an uphill battle when it comes to finding big gain mods. Helps keep you out of trouble though. Good luck. What is your friend beating you with?