Originally Posted by kannibul

It's there on all of them, with an auto it's noticable since it tends to drop the RPMs to that range when it shifts early and often. Usually I'm accellerating enough to where it doesn't do it for very long, but it's certainly there. It's probably why Tony recommended the 18" resos for 7ATs, even if one didn't have HFC's.

I also found it interesting that I'm hearing either some kind of backpressure pop or something along those lines, when downshifting the 7AT and engine braking only - kind of a muffled sound...(hit the paddle shifter, syncrho-rev kicks the engine up, tranny enguages, boof...ohmmmmmmmmmmmmmm hit it again...vroom,grab,boof..ohmmmmmm) - I didn't notice it before, but, then again the exhaust was quieter before