I'm still betting the Gen III is really making power by leaning out the MAF signal using a (slightly) larger diameter tube at the sensor. That sorta explains why the first two versions did very little in terms or performance. It really doesn't have to be much bigger. A millimeter or two would likely be all that's needed.
It would be great of someone could measure the diameter of the MAF tube on the Gen 3 vs the OEM pipe.
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2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ
2010 SOLD: 40th Anniversary 370z
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