My 997c2 dyno
997c2 base with fabspeed cold air/bmc filter/fabspeed headers and muffler bypass w/approx. 6000 miles. Ambient temp. 70 F and approx 5-10 ft above sea level. (don't know if that makes any difference)
I had 4 runs with low hp of 302.6 and high of 309.9 / low tq of 264.9 and high of 269.8. Anyway, you see it on the graph. Dynapack.