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NECRO thread, but i'll take a shot.
all the info is in the provided dynos, but i do not think they have been interpreted properly.
first of all, there are three passes - stock, exhaust, exhaust+intake. both exhaust and exhaust+intake improve over stock throughout the curve.
exhaust+intake also has higher peak torque and HP over just exhaust (ie at higher rpm) however exhaust looks to have much more midrange over exhaust+intake. they say it's not the peak power that matters but rather total area under the curve. but that depends on how you drive - keep it over 5k rpms and exhaust+intake is outperforming everything else.
further, exhaust was performed with a tune while stock and exhaust+intake were not. this becomes very obvious when looking at the afr curves at the bottom of the dyno - exhaust runs leaner and for longer compared to either stock or exhaust+intake. ie, the tune looks to run an afr of 12.5 vs 12 when the ecu transitions to open loop. apply the same tune to stock and exhaust+intake and i think you will see exhaust loose the midrange advantage. until then it's an apples to oranges comparison.
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