Originally Posted by forza1976
This is a NO NO for the N54, let's just get that straight. Any of the options on the market don't take into account harmonic balancing that the stock pulley provides.
I gather the manufacturers for this type of mod just haven't spent the time on it because of little/light demand for the N52 engine. But I doubt gains would be huge.
+1. NO to after-market pullies.