Just to add to this conversation about the 007 valve. I have a 007 and smoothed airbox with bmc panel filter and 100mm cold air feed into the wing replacing the origional one. My dumping sound is quite loud not noticable from outside the car and have to have the radio off to hear it but is muh louder than standard. Just wondering wat effect a fmic + remap would make on the sound, as ive heard that loads of people use the smoothed airbox and panel filter and get a loud sound but i presume that their cars must have been remapped?