I've noticed there isn't really a need to go past 6k rpm. The flat foot shifting allowed by the Cobb is pretty sweet for the 3 times I've tried it. It's difficult to trick my mind into keeping my right foot planted while shifting. Oh, and a set of 17.7 lb 18" Konig Ultraforms are already in transit.
I too and uncomfortable with flat foot shifting. Just knowing the possibility keeps me from doing it.
I did do it once or twice, and the kick in the ass from a FFS is pretty awesome though.
not really a need. Turbo actually starts to fall off around 5k though. The green line is the boost chart. Stock its flat until about 5k, then falls off when it can no longer feed the engine above 5k.
Tuned it holds till about 4k, then can't keep up with the increasing demand.
This was a stock dyno of my 2013.
And this is the Cobb 93 OTS Stage 1.