I'm not sure what exactly your reason for wanting to shift early if you're flooring it. Its not shifting till Red Line for a reason, its using all that power to get the car going as fast as possible. If thats not what you want, use less foot.Not that I race my SE but it seems when I need to "get on it" it doesn't want to shift until it get's to "red line".....manually shifting it does nothing unless I'm driving normal. Under hard acceleration if I manually shift, it still doesn't change gears until a higher rev then what I think it should be pulling.
This is really not something that I can tell my dealer....lol... So I was hoping someone may know something I can DIY.
If you want more tranny control, get a predator and use the auto-upshift disable. It turn the transmission to a mode where you actual to control exact shift points, even if you are flooring it, it will upshift or downshift right when you tap it.