Similar to how I solved all the rattles on my current Lotus, hurricane intake, bigger TB, 4-2-1, large diameter free flow back box and a de-cat.... Can't hear a thing now..... Pardon?
Toyed with the idea of the mrs bringing the Lotus too, I love hearing it roar past me, only experienced it a couple of times with a mate driving it - but I think she sees us "spending time with each other" as being in the same vehicle.... Women!!
If you have a nice sounding motor and you've only ever heard it from the inside I'd thouroughly recommend swapping keys to hear what everyone else hears as you pass by.
Same mate did a drive by for me in the GTS when I first got it, that alone justified the missing £100k from my account