Thanks for the WAF ("wife acceptance factor") reports.
The M3 is the first of my high performance cars that my wife actually likes. It wouldn't be the end of the world if I screwed that up, but it's nice to not take any guff over my mods. So far the throttle bodies and Active Autowerke exhaust have gone largely unnoticed. (I keep the windows up and don't blip the throttle while she's in the car).