Hi everyone! I tried to reach factory announced max speed of 230 km/h (143 mph). But I had only 139 mph. To tell the truth I would like to reach 160-165 mph. What is surprised me that at top speed (225 km/h) engine has only 5400 rpm but max power is at 6200 rpm. I guess it's deficit of air or fuel or both. So I ask by what upgrade should I start. P.S. Sorry for my english.