hey guys i got my cobra upper and lower explorer intake installed with a 65mm BBK Throttle Body and 24Lb injectors with the correct calibrated MAF. Car is fine at idle but when i take it for a drive I hear a hissing/whistling noise. Never made this noise before installing these parts. My mechanic said all lines are hooked up no leaks anywhere. There is one line that he said is the coolant line that is capped off and not hooked up because there was no spot for it. Anyone know what could be the issue? Car has EGR still.Please let me know thanks