[PrematureApex]

Originally Posted by PeteA

It will most definitely have a much higher safe tuning potential with all that hardware on board vs a "regular" N55.

I mean, that's not necessarily true. The "regular" N55 is still a very strong engine, capable of making big, reliable power. The forged crank is nice, but the cast cranks don't have issues as it is, nor the pistons, even very modified.

As posted above, if it's a "regular" N55 turbo, that's the limiting factor. Now, the a/w IC might get you some added headroom, but there's simply not a ton more power to be made without replacing it (unlike the N54/S55).

Even with the larger aftermarket turbo swaps on the regular N55, the rotating assembly isn't a point of failure. So again, while it's nice, assuming it's going to result in a tangible performance or reliability advantage for most owners isn't necessarily true.

Why would the difficultly be the software tuning? The platform has been out for over 5 model years now. It's likely not going to take much to put a JB4 on this car, if the existing one doesn't work as-is. Not sure if this ECU can be cracked like others can't (likely it can't be, or won't be), in that case...we're left with bench flashes or a piggy.

But anyway, the tuning is going the relatively easy part when dealing with an older engine/ECU platform. Not sure why you'd think otherwise.