Quote:
Originally Posted by xxxjecxxx2
I have same car as you. Purchased everything and did it myself.
The N55 does not need walnut blasting, at least not at 50K. Whatever BMW changed from n54 to n55 made a huge difference.
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More info on this as I just crossed 50k and was thinking about buying my own kit and getting the valves walnut blasted. Should I not bother?