I would not call my car a loud, piecemeal heap by a long shot.
As I said, anecdotal evidence. Just my personal experience. If I knew you, I'd say "all but one of the people I know....".
Here in NC, there's a visual inspection for the emissions stuff like EGR, evap system, cats, etc. So even if you are able to work it out via the tune and/or electrically, they can still physically see it isn't there. PITA.
Wow there is all kinds of straight up BS in here...
Turbos are reliable which is why they now sit in almost every ford car made now ECOBOOST, BMW VW, KIAs, BMW's, and even some new Chevrolet, Lexus ETC are kicking them off.
There is a massive, MASSIVE difference in an OEM setup that's been produced tens or hundreds of thousands of times, and an aftermarket kit that may have sold a few thousand.
Go talk to anyone with a diesel truck or Ecoboost car that has swapped their OEM turbo for an aftermarket one, and I'd put money that it won't last a quarter as long as the stock one would.
Don't use cheap Chinese parts and you won't have a problem. I've had my turbo setup for 8 years without an issue.
I don't know where you're getting your info on PD blowers. Very few cars had them. There were way more cars rolling off the assembly lines with turbos than PDs in the 80s, 90s, and 2000s. That number has only grown in recent years.
Buick LeSabres, Regals, and Rivieras
Jaguar XJRs and XKRs
Pontiac Bonnevilles and Gran Prixs
Nissan Frontiers and Xterras
Cobras and Lightings
Chevy Impala SS, Monte Carlo SS, Cobalt SS
Some of the Mercedes C-Class (Kompressors?), I believe
Just off the top of my head.
Sure, there's plenty of turbo cars, too. Supras, GSXs, Cyclones, and Talons come to mind. But Eaton has put a many a roots blower on production cars.