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The injens fail for the main reason they are NOT breathing air from that little hole on the bottom of the fender well, even the factory intakes breath air from the outside. The factory is pulling fresh air in from the grill. The ONLY air the injens are breathing from is coming from the hot motor. Now you say unlock the ECU, sure the ECU is going to show a better reading but it could never make the injens breath better from the bottom little hole. If you take your hand and put it in front of the tube you will see that your car wants to stall, now that's whats happeneing with the injens, there pulling air from no where.
I see what you're saying...however, if your theory is correct, shouldn't the Injens make LESS horsepower than the stock intakes? Granted your increase was only 4 whp due to your other mods, but it was still an increase.
