I've always thought they would only work with a straight pipe with absolutely nothing in the pipe. My thinking is that things such as bends in the pipe, sensor mesh and then the throttle body itself would prevent a true 'swirled' airflow. So all you end up with is another restriction in your intake....
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King Spring Lows, TWM short shifter, split eardrums, blah blah blah and a little voice saying "I wish I had a turbo"
Updated 2007-03-19: Readers Rides Finally upgraded from the stock headunit
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