Thanks for the prompt replies guys.
The noise isn't from induction roar. I should have mentioned that I tried it without any filter at all, then with the pod, then with the standard MAF and airbox, it made no difference to the sound level at all. This is because the motor is under virtually no load when just free reving to 4000rpm so it has very little airflow. At WOT is a different story though and I will use Sideshow's idea of stuffing foam into the stock airbox, (thanks Sideshow)
It's basically just the mechanical noise of the engine itself that's causing the problem. I seem to remember reading about somebody covering the engine in a blanket to pass the driveby noise test, then almost having a fire!!!
Help...
