Originally Posted by wstar

If you're gonna switch, do this ^. There's a ton of little things different on the two, including the ECU, some wiring harnesses, the rear diff, etc.

But really, the shift delay thing isn't a big deal. I used to worry about it more before I had taken the car to the track because I'd sometimes see these big delays bopping around town, and it seemed kinda random. It's really not, it all has to do with how you're driving. The shifts are plenty fast at high RPM, in both directions.