Oh...that would explain that burning sensation I feel sometimes!
OP, you know, you didn't say, but what exhaust do you have now? You said your wife hates the drone...so I assume you already have something you don't like or that you and your wife have just been listening to exhausts together and trying to find one you both like the sound of.
Before it's too late...tell your wife that the drone you prefer to hear is hers, and that you think you should stay stock...so you can hear her better at any speed.
Debut Radio Show Tuesdays from 1-2-ish p.m. EST on Hamiltonradio.net The Mechanical Animals
call in for car repair help! 609-503-4058
A recent set--NSFW audio: https://youtu.be/_dcxcZfD6dg
Mangofy your E46!