494 horsepower to all four wheels in SAE correction and an eye opening 602 pound-feet of torque at the wheels. PorscheBoost is not sure if the runs are numbered in order as it would make sense that heat soak affected the lower runs. Regardless, the peak figures are quite strong.
Compare these Dynojet numbers for the 991 Turbo to the Mustang dyno numbers for the 991 Turbo S. We all know the Turbo S is more powerful yet this is a good example of different dynamometers reading differently as the Turbo S Mustang figures are lower than the Turbo Dynojet figures.
Also compare these figures to a 997.1 Turbo with a tune on a Dynojet in SAE correction. The 991 Turbo is making more power stock than an ecu tuned example of a 997.1 Turbo. The torque figures show a huge disparity.
Here is another Dynojet graph that shows a before and after tuned 997.1 Turbo on a Dynojet in SAE correction:
Now this dyno graph shows a 997.2 Turbo with a tune, exhaust, and intake. It then receive a new tune from AMS and goes back to the stock intake:
The stock 991 Turbo is showing more torque than some tuned 997.2 Turbo models. Obviously this varies depending on the quality of the tuner as shown. It is roughly on par when stock with a well tuned 997.1 Turbo in horsepower and torque. A well tuned 997.2 puts out more horsepower at the wheels but with slightly lower torque. That is huge and it will be interesting to see how much Porsche left on the table for 991 Turbo tuning on the stock turbochargers. Regardless, the 991 Turbo is quite strong stock.