I get it, ECS is trying to take advantage of the customers who want more from their 4.8, and who don't care about costs. But what about us normal people? $1000 for 10-15 HP gains...and perhaps better throttle response (click the shifter to M/S mode...)?

IDK, I don't buy it. I think, when my transmission is in M/S mode, it's a drastic difference over regular automatic mode, that's good enough for me. If I wanted more power, I would trade it in for a 50i or an M.

Shame on you, ECS, for charging $1000 for a piece of hardware that can only be used in one vehicle, and only giving 10-15 HP. If it was $300, I'd be interested...but even that is a large price to pay for 10-15 HP.