Mercedes-Benz C180 W204 1.8L Kompressor 156ps

We remap a great many Kompressors every week, but there are also many that have had a smaller pulley fitted and are driving around without a remap. Below the dyno chart you can see the boost pressure graph. The blue line is with the pulley fitted and no ECU remap: boost starts at 0.7 and drops to 0.3 at the limiter. The ECU sees more air than it expects and cuts boost, so at high revs the car ends up worse than stock. So it measured 150ps with 233Nm of torque. With Stage 1+ it reached 211ps with 271Nm of torque, and the graph shows boost now holding at 0.83 all the way to the limiter.