Micron's innovative manufacturing technique is a pioneering event that makes excellent performance sense... theoretically. I don't have Micron's header tube cross-sectional area data (the "flattened" or hydro-formed area) and therefore can't offer a quantitative response. However, if the cross-sectional area reduction is correctry sized with respect to the head's exhaust port, it could very well have superior flow velocity at lower RPM and, because of it's "tapered" cross-sectional design (as opposed to the "sudden" area change with stepped tubes), could sustain that higher velocity across a wider portion of the powerband. I have only read of one Busa that dynoed with the Serpent system, mapped, and a small box mod. He scored a respectable 169 HP with a fat low-RPM power curve. Not too shabby for a "crushed" pipe, eh? *
