Originally Posted by Sumithb13
N55 is superior to the N54 in every way except tuning ability to unsafe levels. Automobile Mag did a dyno test between the two and the N55 puts out more torque("kick in the pants") then the N54 while the N54 put out more horsepower.
So, it's a wash in terms of performance. N55 is also a more fuel efficient engine due to the addition of Valvetronic and implementing a single twin-scroll turbocharger. The judges were misinformed
Once you get your F30 I'll put mine to stock and we'll switch cars and I'll let you be the judge on which car has more "kick in the pants"