I'll be surprised if you see the north side of 6500 rpm on the street with that combo.
My baby 2.8 and -5's, I pull gears at 6500 and just fall back into the meat.
You will change your driving style, corners where you'd be in 2nd with the 2.6 nugget, you'll do the same in 3rd if not 4th.
Wait and see.