Get rid of the air con but leave the power steering. Trust me it is rock hard without it. You will see some form of improvement as well. The air con is powered by a belt so even when it is off it is sapping power and torque from your engine. Not much when it's off but every little bit counts. it's the torque where you mainly see the difference. Me and Markoos took the a/c out of his car and he said it was a good difference. I don't have it so i couldn't really say but trust us, get rid of the a/c. Weighs a ton as well. Bourkey