Quote:
Originally Posted by Oeb36
So what are the differences between the n55 engine in the m2 and the n55 engine in the 335?
What has been upgraded in the m2 n55
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I forgot to mention that the n55 in the m2 uses the plastic diverter valve from the N20 instead of the standard rubber diaphragm diverter valve found in all other N55's. This means the m2's diverter valve is not susceptible to leaking over time so you aren't going to be in a rush to replace that part, and the only gain you will get from upgrading that is better throttle response.