Originally Posted by gmercoleza

As for the acceleration - what you describe seems to fit my description pretty accurately. All I can say is YUCK! Heavy acceleration is not very smooth at all, nothing like my M103. I had no idea there would be such a night-and-day difference between the two engines. My M103 will sing all the way to redline, whereas the M104 sounds like a blender under the hood and won't hang out in the upper RPMs for very long. And this is improvement?