Consideration of transit times

Hello,
Today, I was thinking about the exhaust flow rates of the 81kW TDI engines. According to some reports, the spool-up times at around 2000-4000 RPM should be approximately 6.5-6.8 seconds, if I recall correctly.

However, the 81 kW TDIs are known to generally offer about 10-15% more power than the official specifications. Therefore, the acceleration tests of around 6.5-6.8 seconds are comparable to those of a 120 hp TDI.

No matter how many reviews I've read, it always seems that these 81 kW TDIs have this extra power.

Because when I compare the results of my power tests, the performance figures are roughly the same as those between 66 kW and 81 kW.

Sure, please provide the text you would like me to translate from German to English.

81 kW (according to the manufacturer) ~ 6.7 seconds from 2000-4000 RPM.

66 kW (tuned to approximately 128 hp) ~ 6.7 seconds (performance calculated based on acceleration)

Because if I factor in the approximately 15% increase in power from the 81 kW TDI engine, I get roughly 126 horsepower, which is quite close to the stated value.

Am I right about this???