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i want to see dyno results from a car with a clean intake with and with out swirl flaps..
The long runners (you see up top) are the main runners used all the time. Long runners help with power in the low RPM range.. The short runners help with power in the high RPM range. when the swirl flaps are removed it is easier for the motor to always use the short runners since that are closer and a little larger in size..
I wonder if it kills off some low end torque??
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