[nsardello]

Recently got rid of my 2011 128i and purchased a 2011 328i with only 45k miles, come to find it is a SULEV with the N51 engine. I live in Texas, so I don't believe I get the extended warranty. This is already has me worried about the future, but I am also wondering what the difference in possible engine upgrades are, and what the stock power and potential is of the N51 vs. the N52.

[Delta0311]

I had a N52 328 at one point. What I remember the 2 motors are fairly close in spec. The one good thing about the N51 was that it already comes with a 3 stage intake manifold. So a simple tune can put you fairly close to an output of a 06 330.

[Noir]

Originally Posted by nsardello

Recently got rid of my 2011 128i and purchased a 2011 328i with only 45k miles, come to find it is a SULEV with the N51 engine. I live in Texas, so I don't believe I get the extended warranty. This is already has me worried about the future, but I am also wondering what the difference in possible engine upgrades are, and what the stock power and potential is of the N51 vs. the N52.

atmosphericM
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