If you are redlining the engine all the time, you are surpassing the torque peak and the torque is actually decreasing.

These engines are quite strong, but there is no engine that will have increased life by spending much of that life at the redline. They are very peaky engines, maybe too much so. I would personally give up some of the high end for some more mid range torque, it would go well with my manual transmission.

Reving it up is fun, but sooner or later there is a price to pay.

Good luck,