The car makes less boost in the lower gears as well. The engine revs so fast that it cannot build boost. This has been tested by us C32 guys and the car makes like 10 psi in 1st gear, 11 psi in 2nd, 12 psi in 3rd, and 14 psi in 4th and 5th gears. So you are down 3 psi from max boost by testing in 2nd gear. We always run in 4th gear on the dyno and get about 293 rwhp and 300 rwtq.

I just looked at a full pull through the gears and my 2nd gear maxed out at 265 rwhp.