Originally Posted by e90pilot
What engine do you have? N52B30? Or N52B25? You need the 3L engine. It sounds like you might even have an M54.
i realized mine is a 2.5 producing like 218 so no hopes of a big improvement, unless i can get the parts to make it a 3.0 theorically as im sure both engines share a big deal of parts, what would i need to make mine a 3.0si? i was checking ebay and it looks like i can get a used one for like 3000 bucks but just the engine